./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E --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 f2f6ef7968fa573a7da88ae0a516f1d800f437d82b0fa75227e8d7d318952eb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:27,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:27,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:44:27,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:27,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:27,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:27,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:27,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:27,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:27,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:27,793 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:27,793 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:27,794 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:27,794 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:44:27,794 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:27,794 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:27,794 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:44:27,795 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:44:27,795 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:27,796 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:44:27,796 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:44:27,796 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:44:27,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:27,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:44:27,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:27,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:27,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:27,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:27,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:27,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:44:27,798 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:44:27,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:44:27,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:27,799 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:27,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:44:27,799 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E 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 -> f2f6ef7968fa573a7da88ae0a516f1d800f437d82b0fa75227e8d7d318952eb1 [2024-11-13 23:44:28,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:28,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:28,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:28,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:28,116 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:28,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i Unable to find full path for "g++" [2024-11-13 23:44:30,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:30,443 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:30,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i [2024-11-13 23:44:30,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/data/379f38f42/d467854480b24eafa85a5c220c9b6fb1/FLAG8340c392d [2024-11-13 23:44:30,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/data/379f38f42/d467854480b24eafa85a5c220c9b6fb1 [2024-11-13 23:44:30,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:30,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:30,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:30,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:30,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:30,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:30" (1/1) ... [2024-11-13 23:44:30,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137d444c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:30, skipping insertion in model container [2024-11-13 23:44:30,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:30" (1/1) ... [2024-11-13 23:44:30,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:30,946 WARN L250 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_adac7a07-f859-4bc9-8298-01c4da8328d2/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i[24547,24560] [2024-11-13 23:44:30,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:30,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:31,033 WARN L250 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_adac7a07-f859-4bc9-8298-01c4da8328d2/sv-benchmarks/c/list-simple/sll2c_prepend_unequal.i[24547,24560] [2024-11-13 23:44:31,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:31,068 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:31,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31 WrapperNode [2024-11-13 23:44:31,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:31,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:31,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:31,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:31,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,121 INFO L138 Inliner]: procedures = 127, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 145 [2024-11-13 23:44:31,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:31,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:31,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:31,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:31,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:31,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:31,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:31,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:31,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (1/1) ... [2024-11-13 23:44:31,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:31,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:31,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:44:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:44:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-13 23:44:31,247 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-13 23:44:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:44:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:44:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:44:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:44:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:44:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:44:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:44:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:44:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:31,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:31,410 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:31,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:31,672 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-13 23:44:31,673 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:31,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:31,714 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 23:44:31,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:31 BoogieIcfgContainer [2024-11-13 23:44:31,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:31,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:31,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:31,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:31,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:30" (1/3) ... [2024-11-13 23:44:31,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432faacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:31, skipping insertion in model container [2024-11-13 23:44:31,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:31" (2/3) ... [2024-11-13 23:44:31,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432faacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:31, skipping insertion in model container [2024-11-13 23:44:31,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:31" (3/3) ... [2024-11-13 23:44:31,725 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_unequal.i [2024-11-13 23:44:31,741 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:31,743 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sll2c_prepend_unequal.i that has 2 procedures, 29 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-13 23:44:31,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:31,805 INFO L333 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, 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;@c784120, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:31,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:44:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 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) [2024-11-13 23:44:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 23:44:31,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:31,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:31,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:31,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash 29992568, now seen corresponding path program 1 times [2024-11-13 23:44:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:31,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135184041] [2024-11-13 23:44:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:31,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:44:32,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:32,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135184041] [2024-11-13 23:44:32,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135184041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:32,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:32,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117871002] [2024-11-13 23:44:32,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:32,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:32,346 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.565217391304348) internal successors, (36), 24 states have internal predecessors, (36), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-13 23:44:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:32,400 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2024-11-13 23:44:32,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:32,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 16 [2024-11-13 23:44:32,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:32,408 INFO L225 Difference]: With dead ends: 55 [2024-11-13 23:44:32,409 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 23:44:32,412 INFO L431 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 [2024-11-13 23:44:32,419 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:32,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 62 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:44:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 23:44:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-13 23:44:32,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2024-11-13 23:44:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-13 23:44:32,461 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2024-11-13 23:44:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:32,462 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-13 23:44:32,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-13 23:44:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-13 23:44:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 23:44:32,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:32,464 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:32,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:44:32,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:32,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1156657458, now seen corresponding path program 1 times [2024-11-13 23:44:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:32,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367874537] [2024-11-13 23:44:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:44:33,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:33,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367874537] [2024-11-13 23:44:33,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367874537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:33,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170121789] [2024-11-13 23:44:33,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:33,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:33,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:33,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:33,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:44:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:33,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-13 23:44:33,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:33,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 23:44:33,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 23:44:34,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:34,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2024-11-13 23:44:34,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-13 23:44:34,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:34,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-11-13 23:44:34,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 17 [2024-11-13 23:44:34,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2024-11-13 23:44:34,119 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-13 23:44:34,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 42 [2024-11-13 23:44:34,183 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 44 treesize of output 32 [2024-11-13 23:44:34,191 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 27 treesize of output 19 [2024-11-13 23:44:34,198 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 19 treesize of output 7 [2024-11-13 23:44:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:44:34,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170121789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:34,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:44:34,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 20 [2024-11-13 23:44:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726103967] [2024-11-13 23:44:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:34,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:44:34,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:44:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-13 23:44:34,229 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 23:44:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:34,612 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2024-11-13 23:44:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:44:34,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-13 23:44:34,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:34,614 INFO L225 Difference]: With dead ends: 28 [2024-11-13 23:44:34,614 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 23:44:34,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-13 23:44:34,615 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:34,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 106 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:34,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 23:44:34,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-13 23:44:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2024-11-13 23:44:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-13 23:44:34,621 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 22 [2024-11-13 23:44:34,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:34,622 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-13 23:44:34,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 23:44:34,622 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-13 23:44:34,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 23:44:34,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:34,623 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:34,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:44:34,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:34,824 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:34,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash 848736393, now seen corresponding path program 1 times [2024-11-13 23:44:34,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:34,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191300279] [2024-11-13 23:44:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:44:35,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191300279] [2024-11-13 23:44:35,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191300279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:35,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082935531] [2024-11-13 23:44:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:35,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:35,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:35,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:35,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:44:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:35,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 23:44:35,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:35,612 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 8 treesize of output 4 [2024-11-13 23:44:35,639 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_node_create_~temp~0#1.base_16| Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |v_node_create_~temp~0#1.base_16| (select |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_16|)) |c_#memory_$Pointer$.base|) (<= (+ |v_node_create_~temp~0#1.base_16| 1) |c_#StackHeapBarrier|))) is different from true [2024-11-13 23:44:35,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:35,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-13 23:44:35,660 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 16 treesize of output 8 [2024-11-13 23:44:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-11-13 23:44:35,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:35,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082935531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:35,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1957105274] [2024-11-13 23:44:35,774 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-13 23:44:35,774 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:35,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:35,781 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:35,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:37,642 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:44:37,655 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:56,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '414#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~count~0#1| 1) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (exists ((|v_#memory_int_85| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| Int) (|v_#memory_$Pointer$.base_62| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_58| (Array Int (Array Int Int))) (|v_#memory_int_28| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| Int)) (and (= (store |v_#memory_int_85| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| (store (select |v_#memory_int_85| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0 (select (select |v_#memory_int_28| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0))) |v_#memory_int_28|) (= |#memory_int| (store |v_#memory_int_28| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select |v_#memory_int_28| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0)))) (= |#memory_$Pointer$.offset| (store (store |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| (store (select |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select (store |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| (store (select |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 0))) (or (and (not (= |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 0)) (exists ((|v_#memory_$Pointer$.base_58| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (store (select |v_#memory_$Pointer$.base_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 0) 4 (select (select |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4))) |v_#memory_$Pointer$.base_62|)) (exists ((|v_#memory_int_84| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_57| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_19| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_15| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| Int)) (and (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_15| (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_15| |ULTIMATE.start_main_~#s~0#1.base|) 0)))) (= (select (select (store |v_#memory_$Pointer$.offset_57| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_$Pointer$.offset_57| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 0)) |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= (store |v_#memory_int_84| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_int_84| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 (select (select |v_#memory_int_BEFORE_CALL_19| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0))) |v_#memory_int_BEFORE_CALL_19|))) (= |ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) (exists ((|v_#valid_33| (Array Int Int))) (and (= (store |v_#valid_33| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 1) |#valid|) (= (select |v_#valid_33| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0))) (exists ((|v_#length_21| (Array Int Int))) (= |#length| (store |v_#length_21| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 8))) (<= (+ |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 1) |#StackHeapBarrier|) (exists ((|v_#memory_$Pointer$.offset_54| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.offset_54| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (store (select |v_#memory_$Pointer$.offset_54| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 0) 4 (select (select |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4))) |v_#memory_$Pointer$.offset_58|)) (exists ((|v_#memory_int_46| (Array Int (Array Int Int))) (|v_#memory_int_81| (Array Int (Array Int Int)))) (and (= |v_#memory_int_85| (store |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4 5))) (= |v_#memory_int_46| (store |v_#memory_int_81| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select |v_#memory_int_81| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 (select (select |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0))))))) (and (not (= |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 0)) (exists ((|v_#memory_$Pointer$.base_58| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (store (select |v_#memory_$Pointer$.base_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 0) 4 (select (select |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4))) |v_#memory_$Pointer$.base_62|)) (= |ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) (exists ((|v_#valid_33| (Array Int Int))) (and (= (store |v_#valid_33| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 1) |#valid|) (= (select |v_#valid_33| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0))) (exists ((|v_#length_21| (Array Int Int))) (= |#length| (store |v_#length_21| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 8))) (<= (+ |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| 1) |#StackHeapBarrier|) (exists ((|v_#memory_$Pointer$.offset_54| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.offset_54| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (store (select |v_#memory_$Pointer$.offset_54| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 0) 4 (select (select |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4))) |v_#memory_$Pointer$.offset_58|)) (exists ((|v_#memory_int_46| (Array Int (Array Int Int))) (|v_#memory_int_81| (Array Int (Array Int Int)))) (and (= |v_#memory_int_85| (store |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 4 5))) (= |v_#memory_int_46| (store |v_#memory_int_81| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select |v_#memory_int_81| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 (select (select |v_#memory_int_46| |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0)))))) (exists ((|v_#memory_int_84| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_16| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_57| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| Int) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_16| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_57| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_$Pointer$.offset_57| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 0)) |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |v_old(#memory_int)_AFTER_CALL_16| (store |v_#memory_int_84| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_int_84| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 (select (select |v_old(#memory_int)_AFTER_CALL_16| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0)))) (= (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_15|) 0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_16| |ULTIMATE.start_main_~#s~0#1.base|) 0))) |v_old(#memory_$Pointer$.base)_AFTER_CALL_16|))))) (= (store (store |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| (store (select |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0 |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|)) |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13| (store (select (store |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15| (store (select |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0 |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|)) |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|) 0 |v_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base_13|)) |#memory_$Pointer$.base|) (= (select (select |v_#memory_$Pointer$.base_62| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0) 0) (= (select (select |v_#memory_$Pointer$.offset_58| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_15|) 0) 0))) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-13 23:44:56,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:56,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:44:56,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2024-11-13 23:44:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048468394] [2024-11-13 23:44:56,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 23:44:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:56,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 23:44:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=845, Unknown=7, NotChecked=58, Total=992 [2024-11-13 23:44:56,056 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 15 states, 10 states have (on average 2.0) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:44:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:56,538 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2024-11-13 23:44:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:44:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 2.0) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2024-11-13 23:44:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:56,540 INFO L225 Difference]: With dead ends: 34 [2024-11-13 23:44:56,540 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 23:44:56,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=105, Invalid=1082, Unknown=7, NotChecked=66, Total=1260 [2024-11-13 23:44:56,542 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 22 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:56,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 125 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 32 Unchecked, 0.2s Time] [2024-11-13 23:44:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 23:44:56,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-13 23:44:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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) [2024-11-13 23:44:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2024-11-13 23:44:56,548 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 24 [2024-11-13 23:44:56,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:56,548 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-11-13 23:44:56,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 2.0) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:44:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-13 23:44:56,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 23:44:56,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:56,549 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:56,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:44:56,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:56,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:56,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1988764797, now seen corresponding path program 1 times [2024-11-13 23:44:56,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:56,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013892221] [2024-11-13 23:44:56,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:58,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:58,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013892221] [2024-11-13 23:44:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013892221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26517442] [2024-11-13 23:44:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:58,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:58,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:58,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:44:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:58,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-13 23:44:58,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:58,373 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 [2024-11-13 23:44:58,565 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:44:58,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:44:58,650 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 [2024-11-13 23:44:58,767 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-13 23:44:58,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 41 [2024-11-13 23:44:58,876 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-13 23:44:58,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2024-11-13 23:44:58,884 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 [2024-11-13 23:44:58,891 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 11 treesize of output 7 [2024-11-13 23:44:58,931 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_node_create_~temp~0#1.base_27| Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |v_node_create_~temp~0#1.base_27| (select |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_27|)) |c_#memory_$Pointer$.base|) (= (select |c_old(#valid)| |v_node_create_~temp~0#1.base_27|) 0) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |v_node_create_~temp~0#1.base_27| (select |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_27|))) (<= (+ |v_node_create_~temp~0#1.base_27| 1) |c_#StackHeapBarrier|))) is different from true [2024-11-13 23:44:58,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:58,964 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-13 23:44:58,965 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 47 treesize of output 38 [2024-11-13 23:44:59,002 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:44:59,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:44:59,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:44:59,011 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 [2024-11-13 23:44:59,040 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 [2024-11-13 23:44:59,102 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-13 23:44:59,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2024-11-13 23:44:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-13 23:44:59,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:59,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26517442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1531873284] [2024-11-13 23:44:59,311 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-13 23:44:59,311 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:59,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:59,312 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:59,312 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:00,342 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:45:00,352 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:45:17,947 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '645#(and (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (not (= 5 (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (exists ((|v_#memory_$Pointer$.offset_72| (Array Int (Array Int Int))) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_106| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| Int) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_78| (Array Int (Array Int Int)))) (and (= |#memory_int| (store |v_#memory_int_29| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (store (select |v_#memory_int_29| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (select (select |#memory_int| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))))) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| (store (select (store |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0 0)) (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (store (select (store (store |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| (store (select (store |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0 0)) (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) 0))) (= (select (select |v_#memory_$Pointer$.base_78| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (= |#memory_$Pointer$.base| (store (store (store |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| (store (select (store |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0 (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)))) (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (store (select (store (store |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| (store (select (store |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0 (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)))) (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))))) (= (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0) (select (select |v_#memory_$Pointer$.offset_72| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) (or (and (exists ((|v_#memory_$Pointer$.offset_68| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.offset_68| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (store (select |v_#memory_$Pointer$.offset_68| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 0) 4 (select (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4))) |v_#memory_$Pointer$.offset_72|)) (exists ((|v_#memory_int_46| (Array Int (Array Int Int))) (|v_#memory_int_102| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4 5)) |v_#memory_int_106|) (= (store |v_#memory_int_102| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_int_102| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0))) |v_#memory_int_46|))) (exists ((|v_#memory_$Pointer$.base_74| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_74| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (store (select |v_#memory_$Pointer$.base_74| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 0) 4 (select (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4))) |v_#memory_$Pointer$.base_78|)) (= |ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) (exists ((|v_#memory_$Pointer$.base_77| (Array Int (Array Int Int))) (|v_#memory_int_105| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_42| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| Int) (|v_#memory_$Pointer$.offset_71| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_28| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_71| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_$Pointer$.offset_71| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 0)) |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_28| (store |v_#memory_$Pointer$.base_77| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_$Pointer$.base_77| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_28| |ULTIMATE.start_main_~#s~0#1.base|) 0)))) (= (store |v_#memory_int_105| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_int_105| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 (select (select |v_#memory_int_BEFORE_CALL_42| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0))) |v_#memory_int_BEFORE_CALL_42|))) (exists ((|v_#length_28| (Array Int Int))) (= |#length| (store |v_#length_28| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 8))) (not (= (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 0)) (<= (+ (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 1) |#StackHeapBarrier|) (exists ((|v_#valid_44| (Array Int Int))) (and (= (store |v_#valid_44| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 1) |#valid|) (= (select |v_#valid_44| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0)))) (and (exists ((|v_#memory_$Pointer$.offset_68| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.offset_68| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (store (select |v_#memory_$Pointer$.offset_68| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 0) 4 (select (select |v_#memory_$Pointer$.offset_72| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4))) |v_#memory_$Pointer$.offset_72|)) (exists ((|v_#memory_int_46| (Array Int (Array Int Int))) (|v_#memory_int_102| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4 5)) |v_#memory_int_106|) (= (store |v_#memory_int_102| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_int_102| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_int_46| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0))) |v_#memory_int_46|))) (exists ((|v_#memory_$Pointer$.base_74| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_74| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (store (select |v_#memory_$Pointer$.base_74| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 0) 4 (select (select |v_#memory_$Pointer$.base_78| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 4))) |v_#memory_$Pointer$.base_78|)) (= |ULTIMATE.start_main_~#s~0#1.base| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) (exists ((|v_#length_28| (Array Int Int))) (= |#length| (store |v_#length_28| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 8))) (not (= (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 0)) (exists ((|v_#memory_$Pointer$.base_77| (Array Int (Array Int Int))) (|v_#memory_int_105| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_29| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_29| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| Int) (|v_#memory_$Pointer$.offset_71| (Array Int (Array Int Int)))) (and (= |v_old(#memory_int)_AFTER_CALL_29| (store |v_#memory_int_105| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_int_105| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 (select (select |v_old(#memory_int)_AFTER_CALL_29| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0)))) (= (select (select (store |v_#memory_$Pointer$.offset_71| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_$Pointer$.offset_71| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 0)) |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_29| (store |v_#memory_$Pointer$.base_77| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17| (store (select |v_#memory_$Pointer$.base_77| |v_ULTIMATE.start_sll_circular_create_~last~0#1.base_17|) 0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_29| |ULTIMATE.start_main_~#s~0#1.base|) 0)))))) (<= (+ (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 1) |#StackHeapBarrier|) (exists ((|v_#valid_44| (Array Int Int))) (and (= (store |v_#valid_44| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) 1) |#valid|) (= (select |v_#valid_44| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0))))) (= (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) |v_#memory_int_29|) (= |v_#memory_int_30| (store |v_#memory_int_106| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (store (select |v_#memory_int_106| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| (select (select |v_#memory_$Pointer$.base_78| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0)) (select (select |v_#memory_$Pointer$.offset_72| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_17|) 0))) 0)))))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.base|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-13 23:45:17,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:45:17,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:45:17,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 28 [2024-11-13 23:45:17,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248678545] [2024-11-13 23:45:17,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:17,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 23:45:17,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 23:45:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1937, Unknown=2, NotChecked=88, Total=2162 [2024-11-13 23:45:17,950 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 28 states, 20 states have (on average 1.45) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:45:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:19,450 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2024-11-13 23:45:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 23:45:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 1.45) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 25 [2024-11-13 23:45:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:19,452 INFO L225 Difference]: With dead ends: 48 [2024-11-13 23:45:19,453 INFO L226 Difference]: Without dead ends: 39 [2024-11-13 23:45:19,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=244, Invalid=3064, Unknown=2, NotChecked=112, Total=3422 [2024-11-13 23:45:19,457 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 39 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:19,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 216 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 375 Invalid, 0 Unknown, 49 Unchecked, 0.5s Time] [2024-11-13 23:45:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-13 23:45:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2024-11-13 23:45:19,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 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) [2024-11-13 23:45:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-13 23:45:19,481 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 25 [2024-11-13 23:45:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:19,482 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-13 23:45:19,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 1.45) internal successors, (29), 22 states have internal predecessors, (29), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:45:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-13 23:45:19,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 23:45:19,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:19,487 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:19,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:45:19,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:19,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:19,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1452286434, now seen corresponding path program 1 times [2024-11-13 23:45:19,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:19,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611591673] [2024-11-13 23:45:19,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:19,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:45:22,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:22,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611591673] [2024-11-13 23:45:22,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611591673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:22,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619973987] [2024-11-13 23:45:22,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:22,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:22,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:22,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:22,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:45:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:22,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-13 23:45:22,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:22,276 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 [2024-11-13 23:45:22,515 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 [2024-11-13 23:45:22,653 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:45:22,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:45:22,737 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 [2024-11-13 23:45:22,852 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-13 23:45:22,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 48 [2024-11-13 23:45:22,992 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-13 23:45:22,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 32 [2024-11-13 23:45:23,003 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 [2024-11-13 23:45:23,011 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 11 treesize of output 7 [2024-11-13 23:45:23,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 23:45:23,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:23,249 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-13 23:45:23,249 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 60 treesize of output 45 [2024-11-13 23:45:23,285 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:45:23,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:45:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:23,307 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 [2024-11-13 23:45:24,347 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 47 treesize of output 49 [2024-11-13 23:45:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 63 [2024-11-13 23:45:24,381 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 12 treesize of output 11 [2024-11-13 23:45:24,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,475 INFO L349 Elim1Store]: treesize reduction 104, result has 23.0 percent of original size [2024-11-13 23:45:24,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 167 treesize of output 123 [2024-11-13 23:45:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 27 [2024-11-13 23:45:24,512 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 3 [2024-11-13 23:45:24,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2024-11-13 23:45:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:24,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2024-11-13 23:45:24,537 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 7 treesize of output 5 [2024-11-13 23:45:24,616 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2024-11-13 23:45:24,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 80 [2024-11-13 23:45:25,156 INFO L349 Elim1Store]: treesize reduction 36, result has 61.3 percent of original size [2024-11-13 23:45:25,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 194 treesize of output 161 [2024-11-13 23:45:25,172 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 27 treesize of output 19 [2024-11-13 23:45:25,183 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 19 treesize of output 7 [2024-11-13 23:45:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:25,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:25,308 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_603 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_609 (Array Int Int)) (v_ArrVal_608 (Array Int Int)) (v_ArrVal_602 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_602)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_609) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_600) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_604))) (store .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_603) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_608) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_607) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2024-11-13 23:45:25,534 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_603 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_609 (Array Int Int)) (v_ArrVal_608 (Array Int Int)) (v_ArrVal_602 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_602)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_609) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_600) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_604))) (store .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_603) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_608) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_607) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (forall ((|ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))))) is different from false [2024-11-13 23:45:25,568 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|))) (or (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_603 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_609 (Array Int Int)) (v_ArrVal_608 (Array Int Int)) (v_ArrVal_602 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_602)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_609) .cse0 v_ArrVal_600) (select (select (store (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_604))) (store .cse1 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse1 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) .cse0 v_ArrVal_603) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_608) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) .cse0 v_ArrVal_607) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (forall ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19| Int)) (not (= (select (select |c_#memory_$Pointer$.base| .cse0) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19|) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)))))) is different from false [2024-11-13 23:45:25,612 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse3))) (or (forall ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19| Int)) (not (= .cse0 (select (select |c_#memory_$Pointer$.base| .cse1) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19|)))) (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_603 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_609 (Array Int Int)) (v_ArrVal_608 (Array Int Int)) (v_ArrVal_602 Int)) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| v_ArrVal_602)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_609) .cse1 v_ArrVal_600) (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_604))) (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) .cse1 v_ArrVal_603) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ 4 (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_608) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| .cse3)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|)) .cse1 v_ArrVal_607) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) |c_ULTIMATE.start_main_~uneq~0#1|))))) is different from false [2024-11-13 23:45:25,647 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse3))) (or (forall ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19| Int)) (not (= .cse0 (select (select |c_#memory_$Pointer$.base| .cse1) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_19|)))) (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_603 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_609 (Array Int Int)) (v_ArrVal_608 (Array Int Int)) (v_ArrVal_602 Int)) (= |c_ULTIMATE.start_main_~uneq~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| v_ArrVal_602)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_609) .cse1 v_ArrVal_600) (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| v_ArrVal_604))) (store .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse2 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|))) .cse1 v_ArrVal_603) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| v_ArrVal_608) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base|) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| .cse3)) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset|)) .cse1 v_ArrVal_607) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) is different from false [2024-11-13 23:45:25,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:45:25,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 149 [2024-11-13 23:45:25,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:45:25,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1354 treesize of output 1253 [2024-11-13 23:45:25,875 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 224 treesize of output 168 [2024-11-13 23:45:25,893 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 279 treesize of output 167 [2024-11-13 23:45:26,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619973987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:26,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [882878135] [2024-11-13 23:45:26,647 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-13 23:45:26,647 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:45:26,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:45:26,647 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:45:26,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:27,435 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:45:27,445 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:45:41,229 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '947#(and (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (not (= 5 (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.base|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23| Int) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| Int) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_87| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_95| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24| Int) (|v_#memory_int_134| (Array Int (Array Int Int))) (|v_#memory_int_29| (Array Int (Array Int Int)))) (and (= (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_#memory_int_29|) (= (store |v_#memory_int_134| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_int_134| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0))) |v_#memory_int_30|) (= (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0) (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) (= (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0)) (= (store (store (store |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| (store (select (store |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24| (store (select (store (store |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| (store (select (store |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.base_95| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.base_95| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|))) |#memory_$Pointer$.base|) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| (store (select (store |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24| (store (select (store (store |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20| (store (select (store |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|) (store (select |v_#memory_$Pointer$.offset_87| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)) 0 (select (select |v_#memory_$Pointer$.offset_87| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23| 0))) (= |#memory_int| (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_24|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_23|)))) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_20|))))' at error location [2024-11-13 23:45:41,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:45:41,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:45:41,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 41 [2024-11-13 23:45:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724052645] [2024-11-13 23:45:41,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:41,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-13 23:45:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:41,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-13 23:45:41,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3496, Unknown=8, NotChecked=610, Total=4290 [2024-11-13 23:45:41,232 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 41 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:45:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:45,079 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2024-11-13 23:45:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:45:45,080 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 27 [2024-11-13 23:45:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:45,081 INFO L225 Difference]: With dead ends: 46 [2024-11-13 23:45:45,081 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 23:45:45,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=331, Invalid=5533, Unknown=8, NotChecked=770, Total=6642 [2024-11-13 23:45:45,083 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 68 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:45,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 290 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 23:45:45,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 23:45:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2024-11-13 23:45:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:45:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2024-11-13 23:45:45,093 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 27 [2024-11-13 23:45:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:45,093 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2024-11-13 23:45:45,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:45:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2024-11-13 23:45:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:45:45,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:45,094 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:45,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:45,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:45,294 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:45,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash -217084259, now seen corresponding path program 1 times [2024-11-13 23:45:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:45,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080106109] [2024-11-13 23:45:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:45,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:48,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:45:48,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080106109] [2024-11-13 23:45:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080106109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415384471] [2024-11-13 23:45:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:48,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:48,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:48,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:48,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:45:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:48,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 136 conjuncts are in the unsatisfiable core [2024-11-13 23:45:48,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:48,801 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 [2024-11-13 23:45:49,176 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 [2024-11-13 23:45:49,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 23:45:49,418 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:45:49,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:45:49,571 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 [2024-11-13 23:45:49,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-13 23:45:49,625 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 [2024-11-13 23:45:49,807 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-13 23:45:49,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 72 [2024-11-13 23:45:49,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2024-11-13 23:45:49,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2024-11-13 23:45:49,994 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-13 23:45:49,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 42 [2024-11-13 23:45:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:50,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2024-11-13 23:45:50,011 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 [2024-11-13 23:45:50,017 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 11 treesize of output 7 [2024-11-13 23:45:50,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:50,260 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-13 23:45:50,260 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 91 treesize of output 70 [2024-11-13 23:45:50,293 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-13 23:45:50,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-11-13 23:45:50,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:50,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:50,338 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-13 23:45:50,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2024-11-13 23:45:50,406 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:45:50,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:45:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,632 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2024-11-13 23:45:51,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 92 [2024-11-13 23:45:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2024-11-13 23:45:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:51,702 INFO L349 Elim1Store]: treesize reduction 75, result has 8.5 percent of original size [2024-11-13 23:45:51,703 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 73 [2024-11-13 23:45:51,744 INFO L349 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2024-11-13 23:45:51,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 217 treesize of output 140 [2024-11-13 23:45:52,270 INFO L349 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2024-11-13 23:45:52,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 192 treesize of output 62 [2024-11-13 23:45:52,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:52,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:45:52,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2024-11-13 23:45:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:52,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:52,696 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_777 (Array Int Int)) (v_ArrVal_776 (Array Int Int)) (|ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| Int) (v_ArrVal_773 (Array Int Int)) (v_ArrVal_772 (Array Int Int)) (v_ArrVal_774 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse3 (store (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_774)) (.cse0 (store (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_777))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_772) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_776) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_773) (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))))) is different from false [2024-11-13 23:45:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415384471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:57,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10024190] [2024-11-13 23:45:57,125 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-13 23:45:57,125 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:45:57,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:45:57,125 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:45:57,125 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:57,781 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:45:57,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:14,756 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1290#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~count~0#1| 1) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) |ULTIMATE.start_main_~ptr~0#1.offset|) (exists ((|v_#memory_$Pointer$.offset_104| (Array Int (Array Int Int))) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32| Int) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29| Int) (|v_#memory_int_166| (Array Int (Array Int Int))) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_112| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| Int)) (and (= (store (store (store |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| (store (select (store |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32| (store (select (store (store |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| (store (select (store |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.base_112| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|))) |#memory_$Pointer$.base|) (= |#memory_int| (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)))) (= (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0)) (= (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0) (select (select |v_#memory_$Pointer$.base_112| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) (= (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_#memory_int_29|) (= |v_#memory_int_30| (store |v_#memory_int_166| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_int_166| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0)))) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| (store (select (store |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32| (store (select (store (store |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23| (store (select (store |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|) (store (select |v_#memory_$Pointer$.offset_104| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29|)) 0 (select (select |v_#memory_$Pointer$.offset_104| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_23|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_32|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_29| 0))))) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 1)) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (= 5 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 4))))' at error location [2024-11-13 23:46:14,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:46:14,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:46:14,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 45 [2024-11-13 23:46:14,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233181100] [2024-11-13 23:46:14,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:46:14,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-13 23:46:14,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:14,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-13 23:46:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=4910, Unknown=4, NotChecked=140, Total=5256 [2024-11-13 23:46:14,760 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 45 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:46:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:19,069 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-13 23:46:19,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:46:19,070 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2024-11-13 23:46:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:19,071 INFO L225 Difference]: With dead ends: 54 [2024-11-13 23:46:19,071 INFO L226 Difference]: Without dead ends: 52 [2024-11-13 23:46:19,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=336, Invalid=7146, Unknown=4, NotChecked=170, Total=7656 [2024-11-13 23:46:19,076 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:19,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 360 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 23:46:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-13 23:46:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2024-11-13 23:46:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:46:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-13 23:46:19,097 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 29 [2024-11-13 23:46:19,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:19,097 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-13 23:46:19,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:46:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-11-13 23:46:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:46:19,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:19,098 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:19,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:19,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:19,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:46:19,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:19,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1292655111, now seen corresponding path program 2 times [2024-11-13 23:46:19,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:19,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326545803] [2024-11-13 23:46:19,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:19,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:20,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:20,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326545803] [2024-11-13 23:46:20,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326545803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:20,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134314987] [2024-11-13 23:46:20,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:46:20,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:20,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:20,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:46:21,413 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:46:21,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:46:21,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-11-13 23:46:21,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:21,433 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 [2024-11-13 23:46:21,711 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-13 23:46:21,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-13 23:46:21,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 23:46:21,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 23:46:21,898 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-13 23:46:21,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 42 [2024-11-13 23:46:21,930 INFO L349 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2024-11-13 23:46:21,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2024-11-13 23:46:22,049 INFO L349 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2024-11-13 23:46:22,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 46 [2024-11-13 23:46:22,063 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-13 23:46:22,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 10 [2024-11-13 23:46:22,071 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-13 23:46:22,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 23:46:22,105 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_node_create_~temp~0#1.base_56| Int)) (and (= (select |c_old(#valid)| |v_node_create_~temp~0#1.base_56|) 0) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |v_node_create_~temp~0#1.base_56| (select |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_56|))) (<= (+ |v_node_create_~temp~0#1.base_56| 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |v_node_create_~temp~0#1.base_56| (select |c_#memory_$Pointer$.offset| |v_node_create_~temp~0#1.base_56|))))) is different from true [2024-11-13 23:46:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:22,139 INFO L349 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2024-11-13 23:46:22,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 76 treesize of output 65 [2024-11-13 23:46:22,163 INFO L349 Elim1Store]: treesize reduction 28, result has 42.9 percent of original size [2024-11-13 23:46:22,163 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 28 treesize of output 30 [2024-11-13 23:46:22,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:22,174 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-13 23:46:22,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 43 [2024-11-13 23:46:22,440 INFO L349 Elim1Store]: treesize reduction 45, result has 26.2 percent of original size [2024-11-13 23:46:22,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 48 [2024-11-13 23:46:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-13 23:46:22,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:22,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134314987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:22,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1990636868] [2024-11-13 23:46:22,851 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-13 23:46:22,852 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:46:22,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:46:22,852 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:46:22,852 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:46:23,518 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:46:23,528 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:33,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1627#(and (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (not (= 5 (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (exists ((|v_#memory_int_30| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38| Int) (|v_#memory_$Pointer$.base_128| (Array Int (Array Int Int))) (|v_#memory_int_187| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40| Int) (|v_#memory_$Pointer$.offset_120| (Array Int (Array Int Int))) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| Int)) (and (= (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0)) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) (= (store (store (store |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| (store (select (store |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40| (store (select (store (store |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| (store (select (store |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.base_128| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|))) |#memory_$Pointer$.base|) (= |#memory_int| (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)))) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| (store (select (store |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40| (store (select (store (store |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| (store (select (store |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_$Pointer$.offset_120| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_$Pointer$.offset_120| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38| 0))) (= |v_#memory_int_30| (store |v_#memory_int_187| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (store (select |v_#memory_int_187| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|)) 0)))) (= |v_#memory_int_29| (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0)))) (= (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_40|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_38|) (select (select |v_#memory_$Pointer$.base_128| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_25|) 0)))) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.base|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-13 23:46:33,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:46:33,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:46:33,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 34 [2024-11-13 23:46:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142865335] [2024-11-13 23:46:33,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:46:33,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 23:46:33,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:33,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 23:46:33,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2395, Unknown=3, NotChecked=98, Total=2652 [2024-11-13 23:46:33,461 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 34 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 23:46:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:34,921 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2024-11-13 23:46:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 23:46:34,922 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 29 [2024-11-13 23:46:34,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:34,923 INFO L225 Difference]: With dead ends: 54 [2024-11-13 23:46:34,925 INFO L226 Difference]: Without dead ends: 43 [2024-11-13 23:46:34,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=227, Invalid=3196, Unknown=3, NotChecked=114, Total=3540 [2024-11-13 23:46:34,927 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:34,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 232 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 486 Invalid, 0 Unknown, 46 Unchecked, 0.7s Time] [2024-11-13 23:46:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-13 23:46:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-11-13 23:46:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:46:34,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2024-11-13 23:46:34,945 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 29 [2024-11-13 23:46:34,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:34,945 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-11-13 23:46:34,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 25 states have (on average 1.52) internal successors, (38), 27 states have internal predecessors, (38), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 23:46:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-11-13 23:46:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:46:34,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:34,947 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:34,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 23:46:35,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:35,148 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:46:35,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1835456563, now seen corresponding path program 1 times [2024-11-13 23:46:35,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:35,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486482422] [2024-11-13 23:46:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:35,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:46:38,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:38,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486482422] [2024-11-13 23:46:38,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486482422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:38,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396344041] [2024-11-13 23:46:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:38,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:38,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:38,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:38,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:46:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:38,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-13 23:46:38,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:38,920 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 [2024-11-13 23:46:39,222 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 [2024-11-13 23:46:39,527 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:46:39,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:46:39,750 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 [2024-11-13 23:46:39,925 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-11-13 23:46:39,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 55 [2024-11-13 23:46:40,080 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-13 23:46:40,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 34 [2024-11-13 23:46:40,087 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 11 treesize of output 7 [2024-11-13 23:46:40,092 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 [2024-11-13 23:46:40,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:40,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-13 23:46:40,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:40,448 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2024-11-13 23:46:40,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 62 [2024-11-13 23:46:40,500 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:46:40,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:46:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:41,960 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 56 treesize of output 42 [2024-11-13 23:46:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:42,059 INFO L349 Elim1Store]: treesize reduction 238, result has 8.5 percent of original size [2024-11-13 23:46:42,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 184 treesize of output 89 [2024-11-13 23:46:42,110 INFO L349 Elim1Store]: treesize reduction 102, result has 13.6 percent of original size [2024-11-13 23:46:42,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 229 treesize of output 120 [2024-11-13 23:46:42,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 23:46:42,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2024-11-13 23:46:42,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:42,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:42,144 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 51 treesize of output 25 [2024-11-13 23:46:42,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:46:42,487 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-13 23:46:42,643 INFO L349 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2024-11-13 23:46:42,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 40 [2024-11-13 23:46:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:42,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:44,947 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1089 (Array Int Int)) (v_ArrVal_1088 (Array Int Int))) (not (let ((.cse1 (store (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1088))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (let ((.cse3 (store (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1089))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (select (select .cse1 (select (select .cse1 .cse0) .cse2)) (select (select .cse3 .cse0) .cse2))))))))) is different from false [2024-11-13 23:46:47,184 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (or (forall ((v_ArrVal_1089 (Array Int Int)) (v_ArrVal_1088 (Array Int Int))) (not (let ((.cse1 (store (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| .cse6)))) (store .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1088))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (let ((.cse3 (store (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1089))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (select (select .cse1 (select (select .cse1 .cse0) .cse2)) (select (select .cse3 .cse0) .cse2))))))))) (forall ((|ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| Int)) (not (= .cse6 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|)))))) is different from false [2024-11-13 23:47:14,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396344041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:14,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [62023235] [2024-11-13 23:47:14,981 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-13 23:47:14,981 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:14,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:14,982 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:14,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:47:15,645 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:47:15,656 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:36,141 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1982#(and (<= 1 |#StackHeapBarrier|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) 4)) 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)))) (exists ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48| Int) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45| Int) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_int_208| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| Int) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_135| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0)) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) (= (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0)) (= (store (store (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| (store (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48| (store (select (store (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| (store (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.base_145| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|))) |#memory_$Pointer$.base|) (= |v_#memory_int_29| (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0)))) (= |v_#memory_int_30| (store |v_#memory_int_208| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_int_208| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0)))) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| (store (select (store |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48| (store (select (store (store |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28| (store (select (store |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|) (store (select |v_#memory_$Pointer$.offset_135| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|)) 0 (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_28|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45| 0))) (= (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_48|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_45|))) |#memory_int|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)))) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (= 5 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 4))))' at error location [2024-11-13 23:47:36,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:36,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:47:36,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26] total 47 [2024-11-13 23:47:36,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859400136] [2024-11-13 23:47:36,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:36,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-13 23:47:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:36,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-13 23:47:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=5384, Unknown=54, NotChecked=298, Total=6006 [2024-11-13 23:47:36,144 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 47 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 38 states have internal predecessors, (48), 5 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 23:47:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:42,991 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2024-11-13 23:47:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 23:47:42,993 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 38 states have internal predecessors, (48), 5 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-11-13 23:47:42,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:42,994 INFO L225 Difference]: With dead ends: 71 [2024-11-13 23:47:42,994 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:47:42,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3010 ImplicationChecksByTransitivity, 61.7s TimeCoverageRelationStatistics Valid=676, Invalid=11265, Unknown=57, NotChecked=434, Total=12432 [2024-11-13 23:47:42,998 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 170 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:42,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 278 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 23:47:42,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:47:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 49. [2024-11-13 23:47:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 42 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:47:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2024-11-13 23:47:43,018 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 31 [2024-11-13 23:47:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:43,018 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2024-11-13 23:47:43,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 38 states have internal predecessors, (48), 5 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 23:47:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-13 23:47:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:47:43,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:43,020 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:43,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 23:47:43,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:43,221 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:47:43,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:43,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1064621785, now seen corresponding path program 1 times [2024-11-13 23:47:43,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:43,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460058127] [2024-11-13 23:47:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:48,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:48,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460058127] [2024-11-13 23:47:48,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460058127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:48,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277299535] [2024-11-13 23:47:48,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:48,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:48,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:48,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:48,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:47:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:48,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 151 conjuncts are in the unsatisfiable core [2024-11-13 23:47:48,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:48,986 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 [2024-11-13 23:47:49,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 23:47:49,423 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 [2024-11-13 23:47:49,818 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:47:49,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:47:49,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-13 23:47:50,013 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 [2024-11-13 23:47:50,021 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 [2024-11-13 23:47:50,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-13 23:47:50,219 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-13 23:47:50,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 90 [2024-11-13 23:47:50,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2024-11-13 23:47:50,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:50,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 19 [2024-11-13 23:47:50,459 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-13 23:47:50,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 35 [2024-11-13 23:47:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:50,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2024-11-13 23:47:50,474 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 11 treesize of output 7 [2024-11-13 23:47:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:50,690 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-13 23:47:50,690 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 95 treesize of output 70 [2024-11-13 23:47:50,717 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-11-13 23:47:50,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2024-11-13 23:47:50,732 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 [2024-11-13 23:47:50,771 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:47:50,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:47:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:50,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:50,803 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 27 treesize of output 25 [2024-11-13 23:47:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 44 [2024-11-13 23:47:52,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,297 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2024-11-13 23:47:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,324 INFO L349 Elim1Store]: treesize reduction 59, result has 10.6 percent of original size [2024-11-13 23:47:52,324 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 82 [2024-11-13 23:47:52,364 INFO L349 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2024-11-13 23:47:52,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 226 treesize of output 131 [2024-11-13 23:47:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 43 [2024-11-13 23:47:52,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:52,403 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 42 treesize of output 23 [2024-11-13 23:47:53,071 INFO L349 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2024-11-13 23:47:53,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 58 [2024-11-13 23:47:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:47:53,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 10 [2024-11-13 23:47:53,097 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 15 treesize of output 7 [2024-11-13 23:47:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:53,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:55,623 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1259 (Array Int Int)) (v_ArrVal_1258 (Array Int Int)) (v_ArrVal_1257 (Array Int Int)) (v_ArrVal_1256 (Array Int Int)) (v_ArrVal_1252 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| v_ArrVal_1252) |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| v_ArrVal_1256))) (or (not (= (store (select .cse0 |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset| (select v_ArrVal_1259 |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset|)) v_ArrVal_1259)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse4 (store (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse8 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse8 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1258)) (.cse1 (store (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))))) (store .cse7 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_sll_circular_prepend_~new_head~1#1.base|))) |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1257))) (let ((.cse5 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse2 (select (select .cse1 .cse5) .cse6)) (.cse3 (select (select .cse4 .cse5) .cse6))) (select (select (store .cse0 |c_ULTIMATE.start_sll_circular_prepend_~last~1#1.base| v_ArrVal_1259) (select (select .cse1 .cse2) .cse3)) (+ 4 (select (select .cse4 .cse2) .cse3)))))))))) is different from false [2024-11-13 23:48:02,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277299535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:48:02,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1908986638] [2024-11-13 23:48:02,936 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-13 23:48:02,936 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:48:02,937 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:48:02,937 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:48:02,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:48:03,805 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:48:03,813 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:48:29,086 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2429#(exists ((|v_ULTIMATE.start_main_~data~0#1_14| Int) (|v_ULTIMATE.start_main_#t~mem20#1_26| Int)) (and (or (and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |v_ULTIMATE.start_main_#t~mem20#1_26| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (exists ((|v_#memory_$Pointer$.base_162| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| Int) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56| Int) (|v_#memory_int_242| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_152| (Array Int (Array Int Int))) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53| Int)) (and (= (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0) (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) (= (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0) (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| (store (select (store |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56| (store (select (store (store |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| (store (select (store |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.offset_152| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.offset_152| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53| 0))) (= |#memory_int| (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)))) (= |v_#memory_int_30| (store |v_#memory_int_242| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_int_242| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0)))) (= |#memory_$Pointer$.base| (store (store (store |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| (store (select (store |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56| (store (select (store (store |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| (store (select (store |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|) (store (select |v_#memory_$Pointer$.base_162| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)) 0 (select (select |v_#memory_$Pointer$.base_162| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_56|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_53|)))) (= |v_#memory_int_29| (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_31|) 0)))))) (= 5 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 4)))) (and (<= 2 |ULTIMATE.start_main_~count~0#1|) (= |v_ULTIMATE.start_main_#t~mem20#1_26| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))))) (or (and (= |v_ULTIMATE.start_main_~data~0#1_14| 1) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~count~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|)) (and (= |v_ULTIMATE.start_main_~data~0#1_14| 1) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~count~0#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))) (not (= |v_ULTIMATE.start_main_#t~mem20#1_26| |v_ULTIMATE.start_main_~data~0#1_14|))))' at error location [2024-11-13 23:48:29,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:48:29,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:48:29,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 48 [2024-11-13 23:48:29,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008664680] [2024-11-13 23:48:29,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:48:29,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-13 23:48:29,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:48:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-13 23:48:29,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=5643, Unknown=5, NotChecked=150, Total=6006 [2024-11-13 23:48:29,093 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 48 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:48:35,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:48:35,555 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2024-11-13 23:48:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 23:48:35,556 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 32 [2024-11-13 23:48:35,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:48:35,558 INFO L225 Difference]: With dead ends: 62 [2024-11-13 23:48:35,558 INFO L226 Difference]: Without dead ends: 60 [2024-11-13 23:48:35,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1292 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=337, Invalid=8034, Unknown=5, NotChecked=180, Total=8556 [2024-11-13 23:48:35,562 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 47 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:48:35,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 268 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 23:48:35,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-13 23:48:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2024-11-13 23:48:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:48:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2024-11-13 23:48:35,592 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 32 [2024-11-13 23:48:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:48:35,594 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2024-11-13 23:48:35,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:48:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2024-11-13 23:48:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:48:35,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:48:35,596 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:48:35,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:48:35,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:48:35,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:48:35,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:48:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash -407926836, now seen corresponding path program 3 times [2024-11-13 23:48:35,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:48:35,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385101789] [2024-11-13 23:48:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:48:35,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:48:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:48:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:48:35,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:48:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385101789] [2024-11-13 23:48:35,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385101789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:48:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887567087] [2024-11-13 23:48:35,895 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 23:48:35,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:48:35,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:48:35,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:48:35,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:48:36,910 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 23:48:36,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:48:36,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:48:36,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:48:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:48:36,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:48:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887567087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:48:36,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:48:36,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-13 23:48:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833178582] [2024-11-13 23:48:36,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:48:36,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:48:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:48:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:48:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:48:36,985 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:48:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:48:37,022 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2024-11-13 23:48:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:48:37,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-13 23:48:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:48:37,023 INFO L225 Difference]: With dead ends: 61 [2024-11-13 23:48:37,024 INFO L226 Difference]: Without dead ends: 31 [2024-11-13 23:48:37,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:48:37,024 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:48:37,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:48:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-13 23:48:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-13 23:48:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 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) [2024-11-13 23:48:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2024-11-13 23:48:37,045 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 33 [2024-11-13 23:48:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:48:37,045 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2024-11-13 23:48:37,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:48:37,045 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2024-11-13 23:48:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:48:37,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:48:37,046 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:48:37,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 23:48:37,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:48:37,246 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:48:37,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:48:37,247 INFO L85 PathProgramCache]: Analyzing trace with hash 899350895, now seen corresponding path program 1 times [2024-11-13 23:48:37,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:48:37,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907333572] [2024-11-13 23:48:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:48:37,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:48:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:48:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 23:48:37,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:48:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907333572] [2024-11-13 23:48:37,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907333572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:48:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451144199] [2024-11-13 23:48:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:48:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:48:37,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:48:37,438 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:48:37,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:48:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:48:37,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:48:37,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:48:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:48:37,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:48:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:48:37,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451144199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:48:37,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1277173886] [2024-11-13 23:48:37,893 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-13 23:48:37,893 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:48:37,893 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:48:37,893 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:48:37,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:48:38,753 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:48:38,763 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:48:46,720 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3068#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-13 23:48:46,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:48:46,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:48:46,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2024-11-13 23:48:46,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729719235] [2024-11-13 23:48:46,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:48:46,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:48:46,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:48:46,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:48:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=759, Unknown=1, NotChecked=0, Total=870 [2024-11-13 23:48:46,722 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:48:46,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:48:46,826 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2024-11-13 23:48:46,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:48:46,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2024-11-13 23:48:46,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:48:46,827 INFO L225 Difference]: With dead ends: 41 [2024-11-13 23:48:46,827 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 23:48:46,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=110, Invalid=759, Unknown=1, NotChecked=0, Total=870 [2024-11-13 23:48:46,828 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:48:46,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 135 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:48:46,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 23:48:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-13 23:48:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 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) [2024-11-13 23:48:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-11-13 23:48:46,839 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 34 [2024-11-13 23:48:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:48:46,840 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-11-13 23:48:46,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:48:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-11-13 23:48:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 23:48:46,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:48:46,841 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:48:46,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 23:48:47,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 23:48:47,044 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:48:47,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:48:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2110117149, now seen corresponding path program 2 times [2024-11-13 23:48:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:48:47,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743975358] [2024-11-13 23:48:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:48:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:48:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:48:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:48:50,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:48:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743975358] [2024-11-13 23:48:50,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743975358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:48:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581134503] [2024-11-13 23:48:50,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:48:50,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:48:50,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:48:50,051 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:48:50,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:48:50,639 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:48:50,639 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:48:50,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-11-13 23:48:50,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:48:50,712 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 [2024-11-13 23:48:51,030 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 [2024-11-13 23:48:51,206 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-13 23:48:51,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2024-11-13 23:48:51,310 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 [2024-11-13 23:48:51,334 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 [2024-11-13 23:48:51,453 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-13 23:48:51,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 60 [2024-11-13 23:48:51,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2024-11-13 23:48:51,576 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-13 23:48:51,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 35 [2024-11-13 23:48:51,584 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 11 treesize of output 7 [2024-11-13 23:48:51,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:51,589 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 23:48:51,691 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-13 23:48:51,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-13 23:48:53,771 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 0))) (and (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse0)) (not (= .cse1 .cse0)) (<= (+ |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (or (exists ((|v_#memory_$Pointer$.offset_BEFORE_CALL_198| (Array Int (Array Int Int)))) (let ((.cse2 (@diff |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_#memory_$Pointer$.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse2 (select |c_#memory_$Pointer$.offset| .cse2))) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse2) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse0) 0) 0) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)))) (and (= (select (select |c_#memory_$Pointer$.offset| .cse0) 0) 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0))) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse1))))) is different from false [2024-11-13 23:48:53,774 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 0))) (and (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse0)) (not (= .cse1 .cse0)) (<= (+ |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (or (exists ((|v_#memory_$Pointer$.offset_BEFORE_CALL_198| (Array Int (Array Int Int)))) (let ((.cse2 (@diff |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_#memory_$Pointer$.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse2 (select |c_#memory_$Pointer$.offset| .cse2))) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse2) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse0) 0) 0) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)))) (and (= (select (select |c_#memory_$Pointer$.offset| .cse0) 0) 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0))) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse1))))) is different from true [2024-11-13 23:48:54,889 INFO L349 Elim1Store]: treesize reduction 133, result has 16.4 percent of original size [2024-11-13 23:48:54,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 505 treesize of output 187 [2024-11-13 23:48:54,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:54,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:54,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 59 [2024-11-13 23:48:55,988 INFO L349 Elim1Store]: treesize reduction 195, result has 8.5 percent of original size [2024-11-13 23:48:55,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 14 new quantified variables, introduced 21 case distinctions, treesize of input 236 treesize of output 118 [2024-11-13 23:48:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:48:56,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-13 23:48:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:48:56,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:49:09,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581134503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:49:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1355416887] [2024-11-13 23:49:09,869 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-13 23:49:09,869 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:49:09,869 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:49:09,869 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:49:09,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:49:10,701 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 8 for LOIs [2024-11-13 23:49:10,711 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:49:41,418 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3398#(exists ((|v_ULTIMATE.start_main_#t~mem20#1_38| Int) (|v_ULTIMATE.start_main_~data~0#1_15| Int)) (and (or (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~count~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (= |v_ULTIMATE.start_main_~data~0#1_15| 1)) (and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~count~0#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (= |v_ULTIMATE.start_main_~data~0#1_15| 1))) (or (and (exists ((|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68| Int) (|v_#memory_int_306| (Array Int (Array Int Int))) (|v_#memory_int_30| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_190| (Array Int (Array Int Int))) (|v_#memory_int_29| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| Int) (|v_#memory_$Pointer$.base_200| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71| Int)) (and (= |#memory_int| (store |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71| (store (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68| (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)))) (= |v_#memory_int_30| (store |v_#memory_int_306| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_int_306| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_int_30| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0)))) (= (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0) (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) (<= 2 |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) (= (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0) (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) (= |v_#memory_int_29| (store |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| (store (select |v_#memory_int_30| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0 (select (select |v_#memory_int_29| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0)))) (= |#memory_$Pointer$.offset| (store (store (store |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| (store (select (store |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71| (store (select (store (store |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| (store (select (store |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.offset_190| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.offset_190| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0 0)) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68| 0))) (= |#memory_$Pointer$.base| (store (store (store |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| (store (select (store |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71| (store (select (store (store |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37| (store (select (store |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|) (store (select |v_#memory_$Pointer$.base_200| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)) 0 (select (select |v_#memory_$Pointer$.base_200| |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0))) |v_ULTIMATE.start_sll_circular_prepend_~head#1.base_37|) 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|))) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.base_71|) |v_ULTIMATE.start_sll_circular_prepend_~last~1#1.offset_68|)))))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |v_ULTIMATE.start_main_#t~mem20#1_38| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (= 5 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 4)))) (and (<= 2 |ULTIMATE.start_main_~count~0#1|) (= |v_ULTIMATE.start_main_#t~mem20#1_38| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4))))) (not (= |v_ULTIMATE.start_main_#t~mem20#1_38| |v_ULTIMATE.start_main_~data~0#1_15|))))' at error location [2024-11-13 23:49:41,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:49:41,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:49:41,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 44 [2024-11-13 23:49:41,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077828473] [2024-11-13 23:49:41,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:49:41,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-13 23:49:41,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:49:41,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-13 23:49:41,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=4850, Unknown=5, NotChecked=140, Total=5256 [2024-11-13 23:49:41,420 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 44 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 35 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:49:43,766 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (let ((.cse7 (select (select |c_#memory_$Pointer$.base| .cse2) .cse3)) (.cse5 (= (select (select |c_#memory_$Pointer$.offset| .cse0) 0) 0)) (.cse6 (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 0))) (and (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_main_~#s~0#1.base|) 1) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse0)) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= .cse1 .cse0)) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse2)) (<= (+ |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset|) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (or (exists ((|v_#memory_$Pointer$.offset_BEFORE_CALL_198| (Array Int (Array Int Int)))) (let ((.cse4 (@diff |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_#memory_$Pointer$.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse4 (select |c_#memory_$Pointer$.offset| .cse4))) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse4) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse0) 0) 0) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)))) (and .cse5 .cse6)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| .cse3) (= (select |c_#valid| .cse0) 1) (= (select |c_#valid| .cse1) 1) (not (= .cse7 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (<= (+ .cse1 1) |c_#StackHeapBarrier|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (not (= .cse2 .cse7)) .cse5 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) .cse6 (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse1))))) is different from false [2024-11-13 23:49:43,770 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|)) (.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|) |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset|))) (let ((.cse7 (select (select |c_#memory_$Pointer$.base| .cse2) .cse3)) (.cse5 (= (select (select |c_#memory_$Pointer$.offset| .cse0) 0) 0)) (.cse6 (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 0))) (and (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_main_~#s~0#1.base|) 1) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse0)) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= .cse1 .cse0)) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse2)) (<= (+ |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.offset|) (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (or (exists ((|v_#memory_$Pointer$.offset_BEFORE_CALL_198| (Array Int (Array Int Int)))) (let ((.cse4 (@diff |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_#memory_$Pointer$.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse4 (select |c_#memory_$Pointer$.offset| .cse4))) (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse4) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| .cse0) 0) 0) (= (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_198| |c_ULTIMATE.start_main_~#s~0#1.base|) 0) 0)))) (and .cse5 .cse6)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| .cse3) (= (select |c_#valid| .cse0) 1) (= (select |c_#valid| .cse1) 1) (not (= .cse7 |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (<= (+ .cse1 1) |c_#StackHeapBarrier|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| |c_ULTIMATE.start_sll_circular_prepend_~head#1.base|)) (not (= .cse2 .cse7)) .cse5 (= |c_ULTIMATE.start_sll_circular_prepend_~head#1.offset| 0) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) .cse6 (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= |c_ULTIMATE.start_sll_circular_prepend_#t~ret9#1.base| .cse1))))) is different from true [2024-11-13 23:49:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:44,832 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2024-11-13 23:49:44,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 23:49:44,833 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 35 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 35 [2024-11-13 23:49:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:44,833 INFO L225 Difference]: With dead ends: 32 [2024-11-13 23:49:44,833 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:49:44,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 51.5s TimeCoverageRelationStatistics Valid=331, Invalid=6150, Unknown=7, NotChecked=318, Total=6806 [2024-11-13 23:49:44,834 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:44,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 587 Invalid, 0 Unknown, 66 Unchecked, 0.9s Time] [2024-11-13 23:49:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:49:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:49:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:49:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:49:44,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-11-13 23:49:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:44,836 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:49:44,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 35 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:49:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:49:44,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:49:44,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:49:44,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 23:49:45,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 23:49:45,044 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:45,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:49:46,761 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:49:46,785 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~ptr~0!base,]]] [2024-11-13 23:49:46,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,796 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,796 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,796 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,796 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~last~0!base,]]] [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-13 23:49:46,797 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,798 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!base [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-13 23:49:46,799 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!base [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~last~0!base,]]] [2024-11-13 23:49:46,800 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!base [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,801 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~last~0!base,]]] [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,802 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!base [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~last~0!base,]]] [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,803 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,807 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,807 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,807 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,807 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!base [2024-11-13 23:49:46,807 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~1!base [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,808 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,809 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~uneq~0 [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,810 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~1!offset [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,811 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,812 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~1!base [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!offset [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,813 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,814 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~uneq~0 [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,815 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!base [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,816 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!base [2024-11-13 23:49:46,817 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,818 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,819 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~uneq~0 [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,820 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~1!offset [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,821 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,822 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!offset [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,823 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~1!base [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] [2024-11-13 23:49:46,824 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~uneq~0 [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,825 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~new_head~1!base [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] [2024-11-13 23:49:46,826 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,828 WARN L162 FloydHoareUtils]: Requires clause for node_create contained old-variable. Original clause: (and (<= 1 |#StackHeapBarrier|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) Eliminated clause: (<= 1 |#StackHeapBarrier|) [2024-11-13 23:49:46,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:49:46,833 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#res!base,]]] [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[#res!base,]]] [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-13 23:49:46,834 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#valid,GLOBAL]] [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-13 23:49:46,835 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-13 23:49:46,836 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-13 23:49:46,836 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression [2024-11-13 23:49:46,836 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!offset [2024-11-13 23:49:46,838 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-13 23:49:46,838 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-13 23:49:46,838 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-13 23:49:46,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:49:46 BoogieIcfgContainer [2024-11-13 23:49:46,839 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:49:46,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:49:46,840 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:49:46,840 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:49:46,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:31" (3/4) ... [2024-11-13 23:49:46,844 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:49:46,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-13 23:49:46,853 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-13 23:49:46,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 23:49:46,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 23:49:46,854 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:49:46,947 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:49:46,947 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:49:46,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:49:46,948 INFO L158 Benchmark]: Toolchain (without parser) took 316460.55ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 92.4MB in the beginning and 229.0MB in the end (delta: -136.6MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. [2024-11-13 23:49:46,948 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:49:46,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.30ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 74.1MB in the end (delta: 18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:49:46,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.53ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:49:46,949 INFO L158 Benchmark]: Boogie Preprocessor took 51.16ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:49:46,949 INFO L158 Benchmark]: RCFGBuilder took 537.32ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 51.5MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:49:46,950 INFO L158 Benchmark]: TraceAbstraction took 315121.96ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 51.0MB in the beginning and 233.6MB in the end (delta: -182.5MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. [2024-11-13 23:49:46,950 INFO L158 Benchmark]: Witness Printer took 107.34ms. Allocated memory is still 335.5MB. Free memory was 233.6MB in the beginning and 229.0MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:49:46,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.30ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 74.1MB in the end (delta: 18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.53ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.16ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 70.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 537.32ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 51.5MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 315121.96ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 51.0MB in the beginning and 233.6MB in the end (delta: -182.5MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. * Witness Printer took 107.34ms. Allocated memory is still 335.5MB. Free memory was 233.6MB in the beginning and 229.0MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~ptr~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~last~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~last~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~last~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~last~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~uneq~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~1!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~uneq~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~uneq~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~1!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~new_head~1!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~uneq~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~new_head~1!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]],[IntegerLiteral[0]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#res!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[#res!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#valid,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: ArrayStoreExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 645]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 313.3s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 485 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 2189 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 193 IncrementalHoareTripleChecker+Unchecked, 1992 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5273 IncrementalHoareTripleChecker+Invalid, 5587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 197 mSDtfsCounter, 5273 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1034 GetRequests, 378 SyntacticMatches, 5 SemanticMatches, 651 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 10387 ImplicationChecksByTransitivity, 261.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=9, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 68 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 107.5s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 668 ConstructedInterpolants, 18 QuantifiedInterpolants, 18128 SizeOfPredicates, 89 NumberOfNonLiveVariables, 3806 ConjunctsInSsa, 925 ConjunctsInUnsatCore, 24 InterpolantComputations, 3 PerfectInterpolantSequences, 207/328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (((len == 2) && (2 == count)) || (((count == 1) && (data == 1)) && (len == 2))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((((len <= 1) && (data == 1)) && (len == 2)) && (data == 1)) || ((((2 == len) && (data == 1)) && (len == 2)) && (data == 1))) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((data == 1) || (data == 1)) RESULT: Ultimate proved your program to be correct! [2024-11-13 23:49:47,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac7a07-f859-4bc9-8298-01c4da8328d2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE