./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_insert_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_insert_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX --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 8eaca07dd267d84d5b5f55ad6096951e873362e33b975be77e0f552bdb4e3bcb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:49,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:49,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:48:49,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:49,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:49,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:49,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:49,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:49,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:49,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:49,481 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:49,482 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:49,482 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:49,484 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:49,485 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:49,485 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:49,485 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:49,486 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:49,487 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:49,487 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:49,488 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:49,488 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:49,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:49,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:49,490 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:49,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:49,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:49,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:49,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:49,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:49,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:49,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:49,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:49,495 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:49,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:49,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:49,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:49,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:49,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:49,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:49,496 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:49,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:49,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:49,497 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:49,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:49,498 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8eaca07dd267d84d5b5f55ad6096951e873362e33b975be77e0f552bdb4e3bcb [2023-11-12 00:48:49,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:49,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:49,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:49,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:49,848 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:49,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/list-simple/sll2c_insert_equal.i [2023-11-12 00:48:52,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:53,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:53,323 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/sv-benchmarks/c/list-simple/sll2c_insert_equal.i [2023-11-12 00:48:53,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/data/dfeac1023/3d9e7550021546979d684adcc088a640/FLAG9ac8b909a [2023-11-12 00:48:53,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/data/dfeac1023/3d9e7550021546979d684adcc088a640 [2023-11-12 00:48:53,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:53,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:53,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:53,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:53,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:53,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:53,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@455cee95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53, skipping insertion in model container [2023-11-12 00:48:53,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:53,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:53,794 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/sv-benchmarks/c/list-simple/sll2c_insert_equal.i[24601,24614] [2023-11-12 00:48:53,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:53,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:53,893 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/sv-benchmarks/c/list-simple/sll2c_insert_equal.i[24601,24614] [2023-11-12 00:48:53,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:53,932 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:53,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53 WrapperNode [2023-11-12 00:48:53,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:53,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:53,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:53,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:53,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:53,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,000 INFO L138 Inliner]: procedures = 127, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 143 [2023-11-12 00:48:54,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:54,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:54,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:54,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:54,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:54,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:54,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:54,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:54,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (1/1) ... [2023-11-12 00:48:54,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:54,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:54,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:54,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-12 00:48:54,139 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-12 00:48:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:48:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:48:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:48:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:48:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:54,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:54,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:54,311 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:54,596 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:54,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:54,688 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:48:54,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:54 BoogieIcfgContainer [2023-11-12 00:48:54,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:54,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:54,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:54,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:54,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:53" (1/3) ... [2023-11-12 00:48:54,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6114f266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:54, skipping insertion in model container [2023-11-12 00:48:54,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:53" (2/3) ... [2023-11-12 00:48:54,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6114f266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:54, skipping insertion in model container [2023-11-12 00:48:54,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:54" (3/3) ... [2023-11-12 00:48:54,699 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_insert_equal.i [2023-11-12 00:48:54,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:54,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:54,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:54,770 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76bea6af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:54,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 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) [2023-11-12 00:48:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:48:54,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:54,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:54,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:54,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:54,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1163290619, now seen corresponding path program 1 times [2023-11-12 00:48:54,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:54,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522037963] [2023-11-12 00:48:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:48:55,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522037963] [2023-11-12 00:48:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522037963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:55,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:55,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253064020] [2023-11-12 00:48:55,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:55,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:55,311 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 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) 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) [2023-11-12 00:48:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:55,410 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2023-11-12 00:48:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:55,413 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 [2023-11-12 00:48:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:55,420 INFO L225 Difference]: With dead ends: 45 [2023-11-12 00:48:55,420 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 00:48:55,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:55,429 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:55,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 42 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 00:48:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-11-12 00:48:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:48:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2023-11-12 00:48:55,472 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 16 [2023-11-12 00:48:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:55,473 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-11-12 00:48:55,474 INFO L496 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) [2023-11-12 00:48:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-12 00:48:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:48:55,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:55,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:55,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:55,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:55,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash -54821104, now seen corresponding path program 1 times [2023-11-12 00:48:55,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:55,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974330760] [2023-11-12 00:48:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:55,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:48:55,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:55,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974330760] [2023-11-12 00:48:55,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974330760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:55,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:55,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:48:55,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504150625] [2023-11-12 00:48:55,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:55,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:48:55,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:55,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:48:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:48:55,925 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:48:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:56,061 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2023-11-12 00:48:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:48:56,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-11-12 00:48:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:56,063 INFO L225 Difference]: With dead ends: 26 [2023-11-12 00:48:56,063 INFO L226 Difference]: Without dead ends: 20 [2023-11-12 00:48:56,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:56,065 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:56,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:56,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-12 00:48:56,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-12 00:48:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:48:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2023-11-12 00:48:56,072 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 22 [2023-11-12 00:48:56,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:56,073 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-12 00:48:56,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:48:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-12 00:48:56,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:48:56,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:56,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:56,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:56,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:56,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1788563102, now seen corresponding path program 1 times [2023-11-12 00:48:56,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771285568] [2023-11-12 00:48:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:59,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771285568] [2023-11-12 00:48:59,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771285568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:59,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202341083] [2023-11-12 00:48:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:59,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:59,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:48:59,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:49:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:00,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-12 00:49:00,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:00,295 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 00:49:00,622 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:49:00,755 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 00:49:00,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-12 00:49:00,866 INFO L351 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 23 treesize of output 11 [2023-11-12 00:49:01,016 INFO L351 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 20 treesize of output 15 [2023-11-12 00:49:01,224 INFO L351 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 46 treesize of output 26 [2023-11-12 00:49:01,231 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-12 00:49:01,247 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:49:01,254 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-12 00:49:01,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:01,559 INFO L351 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 16 treesize of output 11 [2023-11-12 00:49:01,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:01,579 INFO L351 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 54 treesize of output 41 [2023-11-12 00:49:01,604 INFO L322 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-11-12 00:49:01,605 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-12 00:49:01,617 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-11-12 00:49:02,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:02,254 INFO L322 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2023-11-12 00:49:02,254 INFO L351 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 76 [2023-11-12 00:49:02,264 INFO L351 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 89 treesize of output 53 [2023-11-12 00:49:02,274 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-11-12 00:49:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:02,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:02,297 INFO L351 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 [2023-11-12 00:49:02,317 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 00:49:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:02,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:49:04,921 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset| 0)) (.cse2 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| 0))) (and (or (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base|)) (.cse0 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (and (or (not .cse0) (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_60 (Array Int Int)) (v_DerPreprocessor_55 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| (store .cse1 |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset| v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_54) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_60) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_55) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (or (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_59 (Array Int Int)) (v_DerPreprocessor_56 (Array Int Int)) (v_DerPreprocessor_57 (Array Int Int)) (v_DerPreprocessor_58 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| (store .cse1 |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset| v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_54) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| v_DerPreprocessor_58) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_59) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| v_DerPreprocessor_56) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_57) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) .cse0))) (and .cse2 .cse3)) (or (not .cse3) (not .cse2) (let ((.cse25 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse4 (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) 0)) (.cse5 (= .cse25 0))) (and (or (and .cse4 .cse5) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.offset| .cse25)))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse14 (= .cse11 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (.cse18 (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (.cse13 (= .cse11 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|))) (let ((.cse8 (not .cse13)) (.cse7 (forall ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (not (= (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_5) .cse11 v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_5)))) (.cse6 (not .cse18)) (.cse9 (forall ((v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int))) (not (= v_DerPreprocessor_9 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_9) .cse11 v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))))) (.cse21 (not .cse14))) (and (or .cse6 (and (or .cse7 (and (or .cse8 .cse9 (forall ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse10 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_26) (select (select .cse10 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse10 .cse11))))))) (or .cse13 (forall ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_24 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_24) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_25) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) (or .cse13 (forall ((v_DerPreprocessor_19 (Array Int Int)) (v_DerPreprocessor_18 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_22 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_23 (Array Int Int))) (= (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_22) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_23) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_18) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) |c_ULTIMATE.start_main_~data~0#1|))))) (or .cse14 (and (or .cse6 (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_37 (Array Int Int)) (v_DerPreprocessor_38 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse15 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15))) (or (not (= (select .cse15 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_13)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_37) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_38) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse15 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) (or (and (or .cse13 (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_34 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_35 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_33) .cse11 v_DerPreprocessor_34) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_35) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse16 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse17 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15))) (or (forall ((v_DerPreprocessor_31 (Array Int Int)) (v_DerPreprocessor_32 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_31) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_32) (select (select .cse16 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse17 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (not (= (select .cse17 .cse11) v_DerPreprocessor_14))))) (not (= v_DerPreprocessor_11 (select .cse16 .cse11))))))) .cse18))) (or .cse13 (and (or .cse14 .cse18 (and (forall ((v_DerPreprocessor_41 (Array Int Int)) (v_DerPreprocessor_42 (Array Int Int)) (v_DerPreprocessor_43 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_41) .cse11 v_DerPreprocessor_42) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_43) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (forall ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_44 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_45 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_44) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_45) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))) (or (forall ((v_DerPreprocessor_40 (Array Int Int)) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_39 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse19 (store (store |c_#memory_int| .cse11 v_DerPreprocessor_39) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_40)) (.cse20 (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse19 (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse20 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_9) .cse11 (select .cse19 .cse11)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_9)) (not (= (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_5) .cse11 (select .cse20 .cse11)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_5))))) .cse21) (or (forall ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_46 (Array Int Int)) (v_DerPreprocessor_47 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_46) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_47) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) .cse6))) (or .cse8 .cse7 (and (or (forall ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_29 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse22 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_29) (select (select .cse22 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse22 .cse11)))))) .cse14) (or .cse9 .cse6 (forall ((v_DerPreprocessor_30 (Array Int Int)) (v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse23 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_30) (select (select .cse23 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse23 .cse11))))))) (or .cse9 (forall ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_27 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse24 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_27) (select (select .cse24 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse24 .cse11)))))) .cse21))))))))) (or (forall ((v_DerPreprocessor_51 (Array Int Int)) (v_DerPreprocessor_52 (Array Int Int)) (v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_50 (Array Int Int)) (v_DerPreprocessor_48 (Array Int Int)) (v_DerPreprocessor_49 (Array Int Int))) (let ((.cse26 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_50) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_51)) (.cse27 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_48) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_49)) (.cse28 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_52) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_53))) (or (not (= v_DerPreprocessor_50 (select .cse26 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse26 (select (select .cse27 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse28 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_48 (select .cse27 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (not (= v_DerPreprocessor_52 (select .cse28 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)))))) (not .cse4) (not .cse5)))))))) is different from false [2023-11-12 00:49:05,742 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| 0)) (.cse1 (= |c_ULTIMATE.start_sll_circular_insert_~last~1#1.offset| 0))) (and (or (and .cse0 .cse1) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base|)) (.cse3 (= |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (and (or (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_60 (Array Int Int)) (v_DerPreprocessor_55 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_insert_~last~1#1.offset| v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_54) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_60) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_55) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (not .cse3)) (or (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_59 (Array Int Int)) (v_DerPreprocessor_56 (Array Int Int)) (v_DerPreprocessor_57 (Array Int Int)) (v_DerPreprocessor_58 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| (store .cse2 |c_ULTIMATE.start_sll_circular_insert_~last~1#1.offset| v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_54) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| v_DerPreprocessor_58) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_59) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~last~1#1.base| v_DerPreprocessor_56) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_57) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) .cse3)))) (or (not .cse0) (not .cse1) (let ((.cse25 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse4 (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) 0)) (.cse5 (= .cse25 0))) (and (or (and .cse4 .cse5) (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.offset| .cse25)))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse14 (= .cse11 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (.cse18 (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (.cse13 (= .cse11 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|))) (let ((.cse8 (not .cse13)) (.cse7 (forall ((v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (not (= (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_5) .cse11 v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_5)))) (.cse6 (not .cse18)) (.cse9 (forall ((v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int))) (not (= v_DerPreprocessor_9 (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_9) .cse11 v_DerPreprocessor_10) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))))) (.cse21 (not .cse14))) (and (or .cse6 (and (or .cse7 (and (or .cse8 .cse9 (forall ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse10 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_26) (select (select .cse10 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse10 .cse11))))))) (or .cse13 (forall ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_24 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_24) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_25) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) (or .cse13 (forall ((v_DerPreprocessor_19 (Array Int Int)) (v_DerPreprocessor_18 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_22 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_23 (Array Int Int))) (= (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_22) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_23) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ 4 (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_18) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) |c_ULTIMATE.start_main_~data~0#1|))))) (or .cse14 (and (or .cse6 (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_37 (Array Int Int)) (v_DerPreprocessor_38 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse15 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15))) (or (not (= (select .cse15 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_13)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_37) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_38) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse15 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) (or (and (or .cse13 (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_34 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_35 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_33) .cse11 v_DerPreprocessor_34) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_35) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse16 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse17 (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_13) .cse11 v_DerPreprocessor_14) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_15))) (or (forall ((v_DerPreprocessor_31 (Array Int Int)) (v_DerPreprocessor_32 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_31) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_32) (select (select .cse16 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse17 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (not (= (select .cse17 .cse11) v_DerPreprocessor_14))))) (not (= v_DerPreprocessor_11 (select .cse16 .cse11))))))) .cse18))) (or .cse13 (and (or .cse14 .cse18 (and (forall ((v_DerPreprocessor_41 (Array Int Int)) (v_DerPreprocessor_42 (Array Int Int)) (v_DerPreprocessor_43 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_41) .cse11 v_DerPreprocessor_42) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_43) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (forall ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_44 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_45 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_44) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_45) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))) (or (forall ((v_DerPreprocessor_40 (Array Int Int)) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_39 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse19 (store (store |c_#memory_int| .cse11 v_DerPreprocessor_39) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_40)) (.cse20 (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse19 (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse20 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_9) .cse11 (select .cse19 .cse11)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_9)) (not (= (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_5) .cse11 (select .cse20 .cse11)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_5))))) .cse21) (or (forall ((v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_46 (Array Int Int)) (v_DerPreprocessor_47 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse11 v_DerPreprocessor_46) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_47) (select (select (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse11 v_DerPreprocessor_16) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) .cse6))) (or .cse8 .cse7 (and (or (forall ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_29 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse22 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_29) (select (select .cse22 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse22 .cse11)))))) .cse14) (or .cse9 .cse6 (forall ((v_DerPreprocessor_30 (Array Int Int)) (v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse23 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_30) (select (select .cse23 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse23 .cse11))))))) (or .cse9 (forall ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_27 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse24 (store (store .cse12 .cse11 v_DerPreprocessor_11) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_12))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_27) (select (select .cse24 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_11 (select .cse24 .cse11)))))) .cse21))))))))) (or (forall ((v_DerPreprocessor_51 (Array Int Int)) (v_DerPreprocessor_52 (Array Int Int)) (v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_50 (Array Int Int)) (v_DerPreprocessor_48 (Array Int Int)) (v_DerPreprocessor_49 (Array Int Int))) (let ((.cse26 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_50) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_51)) (.cse27 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_48) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_49)) (.cse28 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_52) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_53))) (or (not (= v_DerPreprocessor_50 (select .cse26 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse26 (select (select .cse27 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse28 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= v_DerPreprocessor_48 (select .cse27 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (not (= v_DerPreprocessor_52 (select .cse28 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)))))) (not .cse4) (not .cse5)))))))) is different from false [2023-11-12 00:49:05,862 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|)) (.cse2 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse4 (= .cse2 0)) (.cse5 (= .cse0 0))) (and (or (let ((.cse3 (= .cse0 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|)) (.cse1 (select |c_#memory_int| .cse0))) (and (or (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_59 (Array Int Int)) (v_DerPreprocessor_56 (Array Int Int)) (v_DerPreprocessor_57 (Array Int Int)) (v_DerPreprocessor_58 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse0 (store .cse1 .cse2 v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_54) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_DerPreprocessor_58) |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_59) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_DerPreprocessor_56) |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_57) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) .cse3) (or (not .cse3) (forall ((v_DerPreprocessor_54 (Array Int Int)) (v_ArrVal_351 Int) (v_DerPreprocessor_60 (Array Int Int)) (v_DerPreprocessor_55 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse0 (store .cse1 .cse2 v_ArrVal_351)) |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_54) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_60) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_55) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))) (and .cse4 .cse5)) (or (forall ((v_DerPreprocessor_51 (Array Int Int)) (v_DerPreprocessor_52 (Array Int Int)) (v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_50 (Array Int Int)) (v_DerPreprocessor_48 (Array Int Int)) (v_DerPreprocessor_49 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_int| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_50) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_51)) (.cse6 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_52) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_53)) (.cse8 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_48) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_49))) (or (not (= (select .cse6 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|) v_DerPreprocessor_52)) (not (= v_DerPreprocessor_50 (select .cse7 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select .cse7 (select (select .cse8 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (+ (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (not (= (select .cse8 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|) v_DerPreprocessor_48))))) (not .cse4) (not .cse5))))) is different from false [2023-11-12 00:49:07,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202341083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:49:07,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [536888670] [2023-11-12 00:49:07,121 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2023-11-12 00:49:07,121 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:49:07,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:49:07,132 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:49:07,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:49:08,631 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2023-11-12 00:49:08,641 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:49:26,201 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '315#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (exists ((|v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.base_22| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_35| Int) (|v_#memory_int_137| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_21| Int) (|v_#memory_$Pointer$.base_68| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_68| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.offset_36| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_35| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_35| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.base_36| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_21| Int) (|v_ULTIMATE.start_sll_circular_insert_~last~1#1.offset_23| Int) (|v_#memory_$Pointer$.base_94| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_35| Int) (|v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| Int) (|v_ULTIMATE.start_sll_circular_insert_~head#1.base_25| Int) (|v_#memory_$Pointer$.offset_94| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_insert_~last~1#1.base_23| Int) (|v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_21| Int) (|v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_21| Int) (|v_#memory_int_81| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.offset_22| Int) (|v_#memory_int_82| (Array Int (Array Int Int))) (|v_#memory_int_83| (Array Int (Array Int Int)))) (and (<= 2 |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) (or (and (= |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| 0) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_68| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25| (store (select |v_#memory_$Pointer$.offset_68| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0 0))) (= (store |v_#memory_$Pointer$.base_68| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25| (store (select |v_#memory_$Pointer$.base_68| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0 |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|)) |#memory_$Pointer$.base|) (or (and (= (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) 0) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_21|) (= (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 0)) |v_#memory_$Pointer$.offset_68|) (= |v_#memory_int_83| (store |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_int_83| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0)))) (= (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) 0) (= (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|)) |v_#memory_$Pointer$.base_68|)) (and (= (store |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_int_81| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0))) |v_#memory_int_81|) (= (store (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) (store (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0)) (select (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|)) |v_#memory_$Pointer$.base_68|) (= (store (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) (store (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0)) (select (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) 0)) |v_#memory_$Pointer$.offset_68|) (= |v_#memory_int_83| (store |v_#memory_int_81| (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) (store (select |v_#memory_int_81| (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0)) (select (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) (select (select |v_#memory_int_83| (select (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0)) (select (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))) |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))))) (or (not (= (select (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) 0)) (not (= (select (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0) 0))))) (= |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| 0) (= |#memory_int| (store |v_#memory_int_83| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25| (store (select |v_#memory_int_83| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0 (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_insert_~head#1.base_25|) 0))))) (and (= |v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.base_36| |v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.base_22|) (= (store (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|)) |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select (store |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| (store (select |v_#memory_$Pointer$.base_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|)) |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 |v_ULTIMATE.start_sll_circular_insert_~last~1#1.base_23|)) |#memory_$Pointer$.base|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.base_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.offset_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.offset_36| |v_ULTIMATE.start_sll_circular_insert_#t~mem13#1.offset_22|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem15#1.base_21|) (= |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_35| |v_ULTIMATE.start_sll_circular_insert_#t~mem14#1.offset_21|) (= |#memory_int| (store |v_#memory_int_82| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select |v_#memory_int_82| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 (select (select |#memory_int| |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0)))) (or (not (= |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| 0)) (not (= |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| 0))) (= |v_#memory_int_82| (store |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| (store (select |v_#memory_int_137| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| (select (select |v_#memory_int_82| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27|)))) (= |#memory_$Pointer$.offset| (store (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| 0)) |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26| (store (select (store |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27| (store (select |v_#memory_$Pointer$.offset_94| |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base_27|) |v_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset_27| 0)) |v_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base_26|) 0 |v_ULTIMATE.start_sll_circular_insert_~last~1#1.offset_23|))))))) (= |ULTIMATE.start_main_~count~0#1| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 1)) (= (select (select |#memory_$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 [2023-11-12 00:49:26,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:49:26,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 00:49:26,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 36 [2023-11-12 00:49:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849478596] [2023-11-12 00:49:26,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 00:49:26,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-12 00:49:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:26,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-12 00:49:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=2411, Unknown=7, NotChecked=300, Total=2862 [2023-11-12 00:49:26,209 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 36 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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) [2023-11-12 00:49:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:29,272 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2023-11-12 00:49:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-12 00:49:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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 23 [2023-11-12 00:49:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:29,274 INFO L225 Difference]: With dead ends: 35 [2023-11-12 00:49:29,274 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 00:49:29,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=263, Invalid=4163, Unknown=8, NotChecked=396, Total=4830 [2023-11-12 00:49:29,278 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:29,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 208 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 00:49:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 00:49:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2023-11-12 00:49:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:49:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-11-12 00:49:29,289 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 23 [2023-11-12 00:49:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:29,289 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-12 00:49:29,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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) [2023-11-12 00:49:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-12 00:49:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 00:49:29,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:29,291 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:29,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:49:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:49:29,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:29,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash 300009808, now seen corresponding path program 2 times [2023-11-12 00:49:29,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:29,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590709410] [2023-11-12 00:49:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:29,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:49:29,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590709410] [2023-11-12 00:49:29,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590709410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:29,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:29,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:49:29,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621831694] [2023-11-12 00:49:29,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:29,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:49:29,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:29,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:49:29,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:49:29,658 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:49:29,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:29,961 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2023-11-12 00:49:29,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:49:29,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-11-12 00:49:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:29,962 INFO L225 Difference]: With dead ends: 29 [2023-11-12 00:49:29,962 INFO L226 Difference]: Without dead ends: 22 [2023-11-12 00:49:29,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:49:29,963 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:29,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:49:29,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-12 00:49:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-12 00:49:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:49:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-11-12 00:49:29,972 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 24 [2023-11-12 00:49:29,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:29,973 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-11-12 00:49:29,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:49:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-12 00:49:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:49:29,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:29,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:29,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:49:29,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:29,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:29,975 INFO L85 PathProgramCache]: Analyzing trace with hash -820314663, now seen corresponding path program 1 times [2023-11-12 00:49:29,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231735866] [2023-11-12 00:49:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:29,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:49:31,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:31,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231735866] [2023-11-12 00:49:31,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231735866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:49:31,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113515118] [2023-11-12 00:49:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:31,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:49:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:31,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:49:31,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_185566cd-b660-4c92-8441-2d03fa5fa92b/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:49:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:31,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 97 conjunts are in the unsatisfiable core [2023-11-12 00:49:31,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:31,843 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 00:49:32,161 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 00:49:32,162 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-12 00:49:32,275 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:49:32,381 INFO L322 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2023-11-12 00:49:32,381 INFO L351 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 41 [2023-11-12 00:49:32,547 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:49:32,547 INFO L351 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 56 treesize of output 27 [2023-11-12 00:49:32,551 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-12 00:49:32,559 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:49:32,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:32,694 INFO L351 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 [2023-11-12 00:49:32,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:32,716 INFO L322 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-12 00:49:32,716 INFO L351 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 64 treesize of output 51 [2023-11-12 00:49:32,762 INFO L322 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-11-12 00:49:32,763 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 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 [2023-11-12 00:49:33,242 INFO L322 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-12 00:49:33,243 INFO L351 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 73 [2023-11-12 00:49:33,272 INFO L322 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-11-12 00:49:33,276 INFO L351 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 100 [2023-11-12 00:49:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:33,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:49:33,311 INFO L351 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 [2023-11-12 00:49:33,426 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:49:33,426 INFO L351 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 65 treesize of output 28 [2023-11-12 00:49:33,474 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:33,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:49:33,644 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:49:33,644 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 228 treesize of output 275 [2023-11-12 00:49:35,116 INFO L322 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2023-11-12 00:49:35,119 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 65 [2023-11-12 00:49:35,142 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:49:35,143 INFO L351 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 36 treesize of output 26 [2023-11-12 00:49:35,793 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset| 0)) (.cse6 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| 0))) (and (or (let ((.cse3 (= |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base|) |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)))) (and (or (forall ((v_DerPreprocessor_93 (Array Int Int)) (v_DerPreprocessor_90 (Array Int Int))) (not (let ((.cse0 (store .cse2 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_90))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse0 .cse1) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_93) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse1))))) (not .cse3)) (or .cse3 (forall ((v_DerPreprocessor_91 (Array Int Int)) (v_DerPreprocessor_92 (Array Int Int)) (v_DerPreprocessor_90 (Array Int Int))) (not (let ((.cse4 (store .cse2 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_90))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse4 .cse5) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~snd_to_last~0#1.base| v_DerPreprocessor_91) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_92) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse5)))))))) (and .cse6 .cse7)) (or (not .cse7) (let ((.cse11 (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) 0)) (.cse12 (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) 0))) (and (or (forall ((v_DerPreprocessor_136 (Array Int Int)) (v_DerPreprocessor_134 (Array Int Int)) (v_DerPreprocessor_135 (Array Int Int)) (v_DerPreprocessor_133 (Array Int Int))) (let ((.cse8 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_133) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_134)) (.cse10 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_135) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_136))) (or (not (= (select .cse8 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_133)) (not (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse8 .cse9) (select (select .cse10 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse9))) (not (= (select .cse10 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_135))))) (not .cse11) (not .cse12)) (or (and .cse11 .cse12) (and (or (forall ((v_DerPreprocessor_98 (Array Int Int)) (v_DerPreprocessor_99 (Array Int Int))) (not (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_98))) (let ((.cse14 (select (select .cse13 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse13 .cse14) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_99) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse14))))) (forall ((v_ArrVal_634 (Array Int Int))) (let ((.cse15 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_ArrVal_634) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (not (= .cse15 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (not (= .cse15 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|)))))) (or (let ((.cse19 (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (let ((.cse26 (not .cse19))) (and (or (forall ((v_DerPreprocessor_123 (Array Int Int)) (v_DerPreprocessor_124 (Array Int Int)) (v_DerPreprocessor_121 (Array Int Int)) (v_DerPreprocessor_122 (Array Int Int))) (let ((.cse17 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_121) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_122))) (let ((.cse18 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select .cse17 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (not (let ((.cse16 (select (select .cse17 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse16 (select (select .cse17 .cse16) (select (select (store (store |c_#memory_$Pointer$.offset| .cse18 v_DerPreprocessor_123) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_124) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= .cse18 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)))))) .cse19) (or (and (or (forall ((v_DerPreprocessor_66 (Array Int Int)) (v_DerPreprocessor_67 (Array Int Int))) (let ((.cse20 (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_66) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_67) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (or (not (= v_DerPreprocessor_66 .cse20)) (not (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| .cse20) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|)))))) (forall ((v_DerPreprocessor_127 (Array Int Int)) (v_DerPreprocessor_128 (Array Int Int))) (not (let ((.cse21 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_127))) (let ((.cse22 (select (select .cse21 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse21 .cse22) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_128) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse22)))))) (forall ((v_DerPreprocessor_132 (Array Int Int)) (v_DerPreprocessor_130 (Array Int Int)) (v_DerPreprocessor_131 (Array Int Int)) (v_DerPreprocessor_66 (Array Int Int)) (v_DerPreprocessor_65 Int) (v_DerPreprocessor_129 (Array Int Int))) (let ((.cse24 (store (store |c_#memory_$Pointer$.base| v_DerPreprocessor_65 v_DerPreprocessor_129) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_130))) (let ((.cse23 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_66) v_DerPreprocessor_65 (select .cse24 v_DerPreprocessor_65)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (= .cse23 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) (not (let ((.cse25 (select (select .cse24 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse24 .cse25) (select (select (store (store |c_#memory_$Pointer$.offset| .cse23 v_DerPreprocessor_131) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_132) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse25))) (not (= v_DerPreprocessor_65 .cse23))))))) .cse26) (or (and (forall ((v_DerPreprocessor_112 (Array Int Int)) (v_DerPreprocessor_111 (Array Int Int))) (let ((.cse28 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_111) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_112))) (or (forall ((v_DerPreprocessor_115 (Array Int Int))) (not (let ((.cse27 (select (select .cse28 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse27 (select (select .cse28 .cse27) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_115) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (forall ((v_DerPreprocessor_67 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select .cse28 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_67) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|)))))) (forall ((v_DerPreprocessor_105 (Array Int Int)) (v_DerPreprocessor_106 (Array Int Int)) (v_DerPreprocessor_110 (Array Int Int)) (v_DerPreprocessor_109 (Array Int Int)) (v_DerPreprocessor_65 Int) (v_DerPreprocessor_107 (Array Int Int)) (v_DerPreprocessor_108 (Array Int Int))) (let ((.cse30 (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_105) v_DerPreprocessor_65 v_DerPreprocessor_106) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_107))) (let ((.cse29 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select .cse30 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) v_DerPreprocessor_65 (select .cse30 v_DerPreprocessor_65)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (= v_DerPreprocessor_65 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) (= .cse29 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) (not (let ((.cse31 (select (select .cse30 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse30 .cse31) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_108) .cse29 v_DerPreprocessor_109) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_110) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse31))) (not (= .cse29 v_DerPreprocessor_65)))))) (forall ((v_DerPreprocessor_73 (Array Int Int)) (v_DerPreprocessor_103 (Array Int Int)) (v_DerPreprocessor_104 (Array Int Int)) (v_DerPreprocessor_101 (Array Int Int)) (v_DerPreprocessor_102 (Array Int Int)) (v_DerPreprocessor_100 (Array Int Int)) (v_DerPreprocessor_65 Int)) (let ((.cse36 (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_100) v_DerPreprocessor_65 v_DerPreprocessor_101) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_102))) (let ((.cse34 (select .cse36 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (let ((.cse32 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| .cse34) v_DerPreprocessor_65 (select .cse36 v_DerPreprocessor_65)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse33 (store (store |c_#memory_$Pointer$.offset| .cse32 v_DerPreprocessor_103) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_104))) (or (not (= .cse32 v_DerPreprocessor_65)) (not (= (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_73) .cse32 (select .cse33 .cse32)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|) v_DerPreprocessor_73)) (not (= v_DerPreprocessor_100 .cse34)) (not (let ((.cse35 (select (select .cse36 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse35 (select (select .cse36 .cse35) (select (select .cse33 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= .cse32 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)))))))) (forall ((v_DerPreprocessor_112 (Array Int Int)) (v_DerPreprocessor_111 (Array Int Int))) (let ((.cse37 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_111) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_112))) (or (forall ((v_prenex_296 (Array Int Int))) (not (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select .cse37 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_prenex_296) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|)))) (forall ((v_DerPreprocessor_114 (Array Int Int)) (v_DerPreprocessor_113 (Array Int Int))) (not (let ((.cse38 (select (select .cse37 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse37 .cse38) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_113) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_114) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse38))))))) (forall ((v_DerPreprocessor_116 (Array Int Int)) (v_DerPreprocessor_117 (Array Int Int)) (v_DerPreprocessor_120 (Array Int Int)) (v_DerPreprocessor_65 Int) (v_DerPreprocessor_118 (Array Int Int)) (v_DerPreprocessor_119 (Array Int Int))) (let ((.cse39 (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_116) v_DerPreprocessor_65 v_DerPreprocessor_117) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_118))) (let ((.cse42 (select .cse39 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (let ((.cse41 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| .cse42) v_DerPreprocessor_65 (select .cse39 v_DerPreprocessor_65)) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (= v_DerPreprocessor_65 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) (not (let ((.cse40 (select (select .cse39 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse39 .cse40) (select (select (store (store |c_#memory_$Pointer$.offset| .cse41 v_DerPreprocessor_119) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_120) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse40))) (not (= .cse42 v_DerPreprocessor_116)) (not (= v_DerPreprocessor_65 .cse41)))))))) .cse19) (or (forall ((v_DerPreprocessor_125 (Array Int Int)) (v_DerPreprocessor_126 (Array Int Int))) (not (let ((.cse44 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_125))) (let ((.cse43 (select (select .cse44 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse43 (select (select .cse44 .cse43) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_126) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) .cse26 (forall ((v_DerPreprocessor_66 (Array Int Int))) (not (= |c_ULTIMATE.start_sll_circular_insert_~head#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_DerPreprocessor_66) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|)))))))) (forall ((v_ArrVal_634 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_ArrVal_634) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|) |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|))) (forall ((v_ArrVal_634 (Array Int Int)) (v_DerPreprocessor_95 (Array Int Int)) (v_DerPreprocessor_96 (Array Int Int)) (v_DerPreprocessor_97 (Array Int Int)) (v_DerPreprocessor_94 (Array Int Int))) (let ((.cse45 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base| v_ArrVal_634) |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (or (not (= .cse45 |c_ULTIMATE.start_sll_circular_insert_~new_node~0#1.base|)) (= .cse45 |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) (not (let ((.cse47 (store (store |c_#memory_$Pointer$.base| .cse45 v_DerPreprocessor_96) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_97))) (let ((.cse46 (select (select .cse47 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse46 (select (select .cse47 .cse46) (select (select (store (store |c_#memory_$Pointer$.offset| .cse45 v_DerPreprocessor_94) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_95) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))))))))) (not .cse6)))) is different from false [2023-11-12 00:49:37,647 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|)) (.cse12 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_~head#1.base|) |c_ULTIMATE.start_sll_circular_insert_~head#1.offset|))) (let ((.cse0 (= .cse12 0)) (.cse4 (= .cse7 0))) (and (or (not .cse0) (forall ((v_DerPreprocessor_136 (Array Int Int)) (v_DerPreprocessor_134 (Array Int Int)) (v_DerPreprocessor_135 (Array Int Int)) (v_DerPreprocessor_133 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_133) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_134)) (.cse3 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_135) |c_ULTIMATE.start_sll_circular_insert_~head#1.base| v_DerPreprocessor_136))) (or (not (= v_DerPreprocessor_133 (select .cse1 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|))) (not (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse2 (select (select .cse1 .cse2) (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= (select .cse3 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|) v_DerPreprocessor_135))))) (not .cse4)) (or (and .cse0 .cse4) (let ((.cse8 (store |c_#memory_$Pointer$.base| .cse7 (store (select |c_#memory_$Pointer$.base| .cse7) .cse12 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|))) (.cse9 (= .cse7 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base|))) (and (or (forall ((v_DerPreprocessor_91 (Array Int Int)) (v_DerPreprocessor_92 (Array Int Int)) (v_DerPreprocessor_90 (Array Int Int))) (not (let ((.cse5 (store .cse8 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_90))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse5 .cse6) (select (select (store (store |c_#memory_$Pointer$.offset| .cse7 v_DerPreprocessor_91) |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_92) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse6))))) .cse9) (or (forall ((v_DerPreprocessor_93 (Array Int Int)) (v_DerPreprocessor_90 (Array Int Int))) (not (let ((.cse10 (store .cse8 |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_90))) (let ((.cse11 (select (select .cse10 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= (select (select .cse10 .cse11) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_insert_#t~ret9#1.base| v_DerPreprocessor_93) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) .cse11))))) (not .cse9)))))))) is different from false [2023-11-12 00:49:40,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113515118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:49:40,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637803713] [2023-11-12 00:49:40,613 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2023-11-12 00:49:40,613 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:49:40,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:49:40,614 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:49:40,614 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:49:42,294 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2023-11-12 00:49:42,305 INFO L180 IcfgInterpreter]: Interpretation finished