./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:33:09,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:33:09,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 17:33:09,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:33:09,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:33:09,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:33:09,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:33:09,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:33:09,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:33:09,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:33:09,313 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:33:09,314 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:33:09,314 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:33:09,315 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:33:09,315 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:33:09,316 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:33:09,316 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:33:09,317 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:33:09,317 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:33:09,318 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:33:09,319 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:33:09,319 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:33:09,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:33:09,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:33:09,321 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:33:09,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:33:09,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:33:09,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:33:09,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:33:09,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:33:09,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:33:09,324 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:33:09,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:33:09,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:33:09,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:33:09,325 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:33:09,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:33:09,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:33:09,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:33:09,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:33:09,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:33:09,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:33:09,329 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:33:09,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:33:09,329 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_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2023-12-02 17:33:09,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:33:09,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:33:09,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:33:09,566 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:33:09,567 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:33:09,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2023-12-02 17:33:12,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:33:12,631 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:33:12,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2023-12-02 17:33:12,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/data/ed6f47deb/a5671ff3e35249f29208d3c7660a80f3/FLAGcd95b083a [2023-12-02 17:33:12,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/data/ed6f47deb/a5671ff3e35249f29208d3c7660a80f3 [2023-12-02 17:33:12,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:33:12,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:33:12,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:33:12,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:33:12,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:33:12,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:33:12" (1/1) ... [2023-12-02 17:33:12,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c147168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:12, skipping insertion in model container [2023-12-02 17:33:12,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:33:12" (1/1) ... [2023-12-02 17:33:12,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:33:12,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:33:12,986 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:33:13,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:33:13,056 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:33:13,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13 WrapperNode [2023-12-02 17:33:13,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:33:13,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:33:13,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:33:13,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:33:13,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,099 INFO L138 Inliner]: procedures = 126, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 127 [2023-12-02 17:33:13,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:33:13,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:33:13,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:33:13,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:33:13,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:33:13,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:33:13,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:33:13,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:33:13,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:33:13,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:13,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:33:13,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:33:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:33:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-12-02 17:33:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-12-02 17:33:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:33:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:33:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:33:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:33:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:33:13,327 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:33:13,329 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:33:13,521 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:33:13,595 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:33:13,596 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 17:33:13,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:33:13 BoogieIcfgContainer [2023-12-02 17:33:13,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:33:13,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:33:13,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:33:13,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:33:13,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:33:12" (1/3) ... [2023-12-02 17:33:13,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b171c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:33:13, skipping insertion in model container [2023-12-02 17:33:13,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13" (2/3) ... [2023-12-02 17:33:13,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b171c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:33:13, skipping insertion in model container [2023-12-02 17:33:13,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:33:13" (3/3) ... [2023-12-02 17:33:13,625 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_remove_all_reverse.i [2023-12-02 17:33:13,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:33:13,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 17:33:13,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:33:13,705 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;@5c1d4dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:33:13,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 17:33:13,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 24 states have internal predecessors, (32), 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) [2023-12-02 17:33:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:33:13,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:13,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:13,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:13,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:13,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1990663983, now seen corresponding path program 1 times [2023-12-02 17:33:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:13,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272032039] [2023-12-02 17:33:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 17:33:14,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:14,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272032039] [2023-12-02 17:33:14,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272032039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:14,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:33:14,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:33:14,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689670833] [2023-12-02 17:33:14,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:14,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:33:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:33:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:33:14,136 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 24 states have internal predecessors, (32), 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) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:14,218 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2023-12-02 17:33:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:33:14,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-12-02 17:33:14,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:14,229 INFO L225 Difference]: With dead ends: 49 [2023-12-02 17:33:14,229 INFO L226 Difference]: Without dead ends: 31 [2023-12-02 17:33:14,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:33:14,236 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:14,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 72 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:33:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-02 17:33:14,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-12-02 17:33:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 26 states have internal predecessors, (31), 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) [2023-12-02 17:33:14,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-12-02 17:33:14,273 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 13 [2023-12-02 17:33:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:14,274 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-12-02 17:33:14,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-12-02 17:33:14,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:33:14,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:14,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:14,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:33:14,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:14,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:14,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1468211193, now seen corresponding path program 1 times [2023-12-02 17:33:14,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:14,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847732350] [2023-12-02 17:33:14,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:14,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 17:33:14,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:14,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847732350] [2023-12-02 17:33:14,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847732350] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:14,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945027851] [2023-12-02 17:33:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:14,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:14,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:14,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:33:14,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:33:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:14,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:33:14,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 17:33:14,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:14,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945027851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:14,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:33:14,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 17:33:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333070498] [2023-12-02 17:33:14,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:14,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:33:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:33:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:33:14,721 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:33:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:14,772 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2023-12-02 17:33:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:33:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-12-02 17:33:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:14,774 INFO L225 Difference]: With dead ends: 48 [2023-12-02 17:33:14,774 INFO L226 Difference]: Without dead ends: 25 [2023-12-02 17:33:14,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:33:14,776 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:14,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:33:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-12-02 17:33:14,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-12-02 17:33:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 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) [2023-12-02 17:33:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-12-02 17:33:14,784 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 21 [2023-12-02 17:33:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:14,784 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-12-02 17:33:14,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 17:33:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-12-02 17:33:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 17:33:14,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:14,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:14,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:33:14,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:14,988 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:14,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2139112923, now seen corresponding path program 1 times [2023-12-02 17:33:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:14,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934309188] [2023-12-02 17:33:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:15,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:15,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934309188] [2023-12-02 17:33:15,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934309188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:15,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:33:15,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:33:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99841552] [2023-12-02 17:33:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:15,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:33:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:15,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:33:15,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:33:15,133 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:15,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:15,172 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2023-12-02 17:33:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:33:15,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 17:33:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:15,174 INFO L225 Difference]: With dead ends: 38 [2023-12-02 17:33:15,174 INFO L226 Difference]: Without dead ends: 36 [2023-12-02 17:33:15,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:33:15,176 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 65 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:33:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-02 17:33:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-12-02 17:33:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 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) [2023-12-02 17:33:15,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2023-12-02 17:33:15,196 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 22 [2023-12-02 17:33:15,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:15,196 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2023-12-02 17:33:15,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-12-02 17:33:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 17:33:15,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:15,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:15,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:33:15,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:15,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:15,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1749213847, now seen corresponding path program 1 times [2023-12-02 17:33:15,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:15,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917201012] [2023-12-02 17:33:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:15,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:15,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917201012] [2023-12-02 17:33:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917201012] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481877565] [2023-12-02 17:33:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:15,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:15,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:15,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:33:15,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:33:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:15,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:33:15,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:15,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:33:15,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481877565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:15,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:33:15,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-02 17:33:15,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383684533] [2023-12-02 17:33:15,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:15,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:33:15,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:15,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:33:15,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:33:15,530 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:15,576 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2023-12-02 17:33:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:33:15,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-12-02 17:33:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:15,578 INFO L225 Difference]: With dead ends: 36 [2023-12-02 17:33:15,578 INFO L226 Difference]: Without dead ends: 35 [2023-12-02 17:33:15,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 17:33:15,580 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 21 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:15,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 80 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:33:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-12-02 17:33:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-12-02 17:33:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 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) [2023-12-02 17:33:15,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-12-02 17:33:15,587 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 30 [2023-12-02 17:33:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:15,587 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-12-02 17:33:15,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:33:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-12-02 17:33:15,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 17:33:15,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:15,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:15,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:33:15,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:15,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:15,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:15,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1608945487, now seen corresponding path program 1 times [2023-12-02 17:33:15,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:15,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927466972] [2023-12-02 17:33:15,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:15,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:15,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:15,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927466972] [2023-12-02 17:33:15,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927466972] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:15,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815153856] [2023-12-02 17:33:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:15,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:15,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:15,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:33:15,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:33:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:16,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:33:16,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:16,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:33:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 17:33:16,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815153856] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:33:16,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377873540] [2023-12-02 17:33:16,182 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 17:33:16,183 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:33:16,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:33:16,192 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:33:16,192 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:33:19,011 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 59 for LOIs [2023-12-02 17:33:19,083 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:33:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1377873540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:33:43,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5, 5, 5] total 28 [2023-12-02 17:33:43,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287546160] [2023-12-02 17:33:43,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:43,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 17:33:43,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 17:33:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=690, Unknown=5, NotChecked=0, Total=812 [2023-12-02 17:33:43,550 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 19 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-12-02 17:33:47,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:50,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:52,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:54,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:33:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:57,668 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2023-12-02 17:33:57,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:33:57,669 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 31 [2023-12-02 17:33:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:57,670 INFO L225 Difference]: With dead ends: 75 [2023-12-02 17:33:57,670 INFO L226 Difference]: Without dead ends: 57 [2023-12-02 17:33:57,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=117, Invalid=690, Unknown=5, NotChecked=0, Total=812 [2023-12-02 17:33:57,673 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:57,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 334 Invalid, 5 Unknown, 0 Unchecked, 14.1s Time] [2023-12-02 17:33:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-02 17:33:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2023-12-02 17:33:57,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 41 states have internal predecessors, (50), 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) [2023-12-02 17:33:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2023-12-02 17:33:57,689 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 31 [2023-12-02 17:33:57,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:57,689 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2023-12-02 17:33:57,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-12-02 17:33:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2023-12-02 17:33:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 17:33:57,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:57,691 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:57,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:33:57,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:57,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:33:57,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:57,892 INFO L85 PathProgramCache]: Analyzing trace with hash -536406132, now seen corresponding path program 1 times [2023-12-02 17:33:57,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258679943] [2023-12-02 17:33:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:33:58,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:58,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258679943] [2023-12-02 17:33:58,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258679943] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:58,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453076658] [2023-12-02 17:33:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:58,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:58,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:33:58,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:33:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:58,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:33:58,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:33:58,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:33:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:33:58,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453076658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:33:58,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [953667055] [2023-12-02 17:33:58,306 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 17:33:58,306 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:33:58,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:33:58,307 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:33:58,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:33:59,501 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 59 for LOIs [2023-12-02 17:33:59,532 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:34:01,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [953667055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:34:01,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:34:01,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 27 [2023-12-02 17:34:01,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255835537] [2023-12-02 17:34:01,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:34:01,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 17:34:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:34:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 17:34:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=612, Unknown=3, NotChecked=0, Total=702 [2023-12-02 17:34:01,811 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-12-02 17:34:04,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:04,079 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2023-12-02 17:34:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 17:34:04,080 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 33 [2023-12-02 17:34:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:04,081 INFO L225 Difference]: With dead ends: 61 [2023-12-02 17:34:04,081 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 17:34:04,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=102, Invalid=706, Unknown=4, NotChecked=0, Total=812 [2023-12-02 17:34:04,082 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:04,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 45 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 6 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 17:34:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 17:34:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2023-12-02 17:34:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 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) [2023-12-02 17:34:04,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2023-12-02 17:34:04,099 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 33 [2023-12-02 17:34:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:04,099 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2023-12-02 17:34:04,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-12-02 17:34:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-12-02 17:34:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 17:34:04,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:04,100 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:04,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:34:04,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:34:04,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:34:04,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1601568639, now seen corresponding path program 1 times [2023-12-02 17:34:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:34:04,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593251398] [2023-12-02 17:34:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:04,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:34:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:34:04,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:34:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593251398] [2023-12-02 17:34:04,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593251398] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:34:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601610740] [2023-12-02 17:34:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:04,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:34:04,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:34:04,404 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:34:04,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:34:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:04,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:34:04,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:34:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:34:04,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:34:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:34:04,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601610740] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:34:04,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1320800077] [2023-12-02 17:34:04,648 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2023-12-02 17:34:04,648 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:34:04,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:34:04,648 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:34:04,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:34:05,747 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 59 for LOIs [2023-12-02 17:34:05,782 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:34:07,451 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1552#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post18#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2147483647 |ULTIMATE.start_main_#t~post18#1|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2023-12-02 17:34:07,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:34:07,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:34:07,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-12-02 17:34:07,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212030501] [2023-12-02 17:34:07,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:34:07,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 17:34:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:34:07,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 17:34:07,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=759, Unknown=2, NotChecked=0, Total=870 [2023-12-02 17:34:07,454 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:34:07,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:07,614 INFO L93 Difference]: Finished difference Result 143 states and 174 transitions. [2023-12-02 17:34:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:34:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2023-12-02 17:34:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:07,616 INFO L225 Difference]: With dead ends: 143 [2023-12-02 17:34:07,616 INFO L226 Difference]: Without dead ends: 142 [2023-12-02 17:34:07,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=145, Invalid=974, Unknown=3, NotChecked=0, Total=1122 [2023-12-02 17:34:07,618 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:07,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 103 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 17:34:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-02 17:34:07,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2023-12-02 17:34:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 130 states have internal predecessors, (159), 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) [2023-12-02 17:34:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2023-12-02 17:34:07,666 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 36 [2023-12-02 17:34:07,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:07,666 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2023-12-02 17:34:07,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:34:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2023-12-02 17:34:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 17:34:07,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:07,669 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:07,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-02 17:34:07,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:34:07,869 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 17:34:07,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:07,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1330263125, now seen corresponding path program 2 times [2023-12-02 17:34:07,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:34:07,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059950542] [2023-12-02 17:34:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:34:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 17:34:09,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:34:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059950542] [2023-12-02 17:34:09,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059950542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:34:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440175045] [2023-12-02 17:34:09,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:34:09,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:34:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:34:09,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:34:09,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:34:09,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 17:34:09,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:34:09,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:34:09,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:34:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 17:34:09,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:34:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 17:34:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440175045] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:34:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1953025804] [2023-12-02 17:34:09,944 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2023-12-02 17:34:09,945 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:34:09,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:34:09,945 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:34:09,945 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:34:11,144 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 59 for LOIs [2023-12-02 17:34:11,175 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:34:13,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2302#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post18#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2147483647 |ULTIMATE.start_main_#t~post18#1|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2023-12-02 17:34:13,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 17:34:13,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:34:13,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2023-12-02 17:34:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478891492] [2023-12-02 17:34:13,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 17:34:13,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 17:34:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:34:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 17:34:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1170, Unknown=3, NotChecked=0, Total=1332 [2023-12-02 17:34:13,503 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-02 17:34:14,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:14,366 INFO L93 Difference]: Finished difference Result 304 states and 385 transitions. [2023-12-02 17:34:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 17:34:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2023-12-02 17:34:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:14,367 INFO L225 Difference]: With dead ends: 304 [2023-12-02 17:34:14,367 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 17:34:14,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=381, Invalid=2165, Unknown=4, NotChecked=0, Total=2550 [2023-12-02 17:34:14,369 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 64 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:14,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 140 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:34:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 17:34:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 17:34:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:34:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 17:34:14,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2023-12-02 17:34:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:14,371 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 17:34:14,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-12-02 17:34:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 17:34:14,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 17:34:14,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 17:34:14,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 17:34:14,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 17:34:14,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 17:34:14,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 17:34:14,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:34:14,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 17:34:19,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 617) no Hoare annotation was computed. [2023-12-02 17:34:19,185 INFO L899 garLoopResultBuilder]: For program point L605-1(lines 605 607) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L895 garLoopResultBuilder]: At program point L605-3(lines 605 607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_sll_circular_remove_last_~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|))) (or (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_sll_circular_remove_last_#in~head#1.offset| 0) (= |ULTIMATE.start_sll_circular_remove_last_~head#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_sll_circular_create_#res#1.base|) (= |ULTIMATE.start_main_~data~0#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_sll_circular_remove_last_#in~head#1.base|) (<= 2 |ULTIMATE.start_sll_circular_remove_last_~head#1.base|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_main_~#s~0#1.base| 0)) (= |ULTIMATE.start_sll_circular_remove_last_~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|)))) [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L605-4(lines 605 607) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L597-1(lines 597 599) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L895 garLoopResultBuilder]: At program point L597-3(lines 597 599) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_sll_circular_remove_last_~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|))) (or (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_sll_circular_remove_last_#in~head#1.offset| 0) (= |ULTIMATE.start_sll_circular_remove_last_~head#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_sll_circular_create_#res#1.base|) (= |ULTIMATE.start_main_~data~0#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_sll_circular_remove_last_#in~head#1.base|) (<= 2 |ULTIMATE.start_sll_circular_remove_last_~head#1.base|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_main_~#s~0#1.base| 0)) (= |ULTIMATE.start_sll_circular_remove_last_~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|)))) [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L597-4(lines 597 599) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 590) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L590-1(line 590) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L895 garLoopResultBuilder]: At program point L586-2(lines 586 591) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_sll_circular_create_#in~data#1| 1)) (.cse2 (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~#s~0#1.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|)) (.cse8 (<= 2 |ULTIMATE.start_main_~#s~0#1.base|)) (.cse9 (= |ULTIMATE.start_sll_circular_create_~data#1| 1))) (or (and .cse0 (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_sll_circular_create_~len#1| 1) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 590) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 17:34:19,186 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 611) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~data#1| 1)) [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L587-1(line 587) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 617) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 610) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L895 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= 1 |#StackHeapBarrier|) (= 2 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (exists ((|v_#valid_40| (Array Int Int))) (and (= (store |v_#valid_40| |ULTIMATE.start_main_~#s~0#1.base| 1) |#valid|) (= (select |v_#valid_40| 1) 1) (= (select |v_#valid_40| 2) 1) (= (select |v_#valid_40| 0) 0) (= (select |v_#valid_40| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select .cse0 0) 48) (= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= (select .cse0 1) 0) (exists ((|v_#length_29| (Array Int Int))) (and (= 2 (select |v_#length_29| 1)) (= (store |v_#length_29| |ULTIMATE.start_main_~#s~0#1.base| 4) |#length|) (= (select |v_#length_29| 2) 27))) (= |ULTIMATE.start_sll_circular_create_~data#1| 1))) [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L584-1(line 584) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L617-3(line 617) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L617-4(line 617) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L895 garLoopResultBuilder]: At program point L617-5(lines 617 619) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_main_~#s~0#1.base| 0))) (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0) |ULTIMATE.start_sll_circular_create_#res#1.base|) (= |ULTIMATE.start_main_~data~0#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0) 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))) [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 578) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2023-12-02 17:34:19,187 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 574 582) the Hoare annotation is: (or (not (= |node_create_#in~data#1| 1)) (< |#StackHeapBarrier| 1) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) [2023-12-02 17:34:19,188 INFO L899 garLoopResultBuilder]: For program point node_createEXIT(lines 574 582) no Hoare annotation was computed. [2023-12-02 17:34:19,190 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:19,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:34:19,202 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-12-02 17:34:19,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~data~0 [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,204 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-12-02 17:34:19,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-12-02 17:34:19,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,207 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,207 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,207 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-12-02 17:34:19,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~data~0 [2023-12-02 17:34:19,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~len~0 [2023-12-02 17:34:19,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#s~0 [2023-12-02 17:34:19,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-12-02 17:34:19,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:34:19 BoogieIcfgContainer [2023-12-02 17:34:19,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:34:19,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:34:19,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:34:19,212 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:34:19,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:33:13" (3/4) ... [2023-12-02 17:34:19,214 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 17:34:19,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-12-02 17:34:19,220 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-12-02 17:34:19,221 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 17:34:19,221 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 17:34:19,221 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 17:34:19,242 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 == len) && (\old(data) == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1)) || ((((((\old(data) == 1) && (len == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1))) [2023-12-02 17:34:19,261 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 == len) && (\old(data) == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1)) || ((((((\old(data) == 1) && (len == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1))) [2023-12-02 17:34:19,312 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 17:34:19,313 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 17:34:19,313 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:34:19,313 INFO L158 Benchmark]: Toolchain (without parser) took 66657.06ms. Allocated memory was 155.2MB in the beginning and 383.8MB in the end (delta: 228.6MB). Free memory was 117.3MB in the beginning and 189.4MB in the end (delta: -72.1MB). Peak memory consumption was 158.0MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,314 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:34:19,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.58ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 99.5MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.07ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,315 INFO L158 Benchmark]: Boogie Preprocessor took 35.75ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:34:19,315 INFO L158 Benchmark]: RCFGBuilder took 461.25ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 121.5MB in the end (delta: -25.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,316 INFO L158 Benchmark]: TraceAbstraction took 65593.06ms. Allocated memory was 220.2MB in the beginning and 383.8MB in the end (delta: 163.6MB). Free memory was 190.1MB in the beginning and 195.7MB in the end (delta: -5.5MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,316 INFO L158 Benchmark]: Witness Printer took 101.26ms. Allocated memory is still 383.8MB. Free memory was 195.7MB in the beginning and 189.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 17:34:19,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.58ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 99.5MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.07ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.75ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 95.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.25ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 121.5MB in the end (delta: -25.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 65593.06ms. Allocated memory was 220.2MB in the beginning and 383.8MB in the end (delta: 163.6MB). Free memory was 190.1MB in the beginning and 195.7MB in the end (delta: -5.5MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. * Witness Printer took 101.26ms. Allocated memory is still 383.8MB. Free memory was 195.7MB in the beginning and 189.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~data~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.base[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #res!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~data~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$.offset[~#s~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#s~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~head!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 65.5s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 16.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 593 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 449 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1109 IncrementalHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 144 mSDtfsCounter, 1109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 591 GetRequests, 425 SyntacticMatches, 11 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1404 ImplicationChecksByTransitivity, 32.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=7, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 71 NumberOfFragments, 400 HoareAnnotationTreeSize, 9 FomulaSimplifications, 42560 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5003 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 457 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 599 ConstructedInterpolants, 0 QuantifiedInterpolants, 1984 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1765 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 285/469 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 4.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 42, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 111, TOOLS_POST_TIME: 2.3s, TOOLS_POST_CALL_APPLICATIONS: 20, TOOLS_POST_CALL_TIME: 0.4s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.7s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 147, TOOLS_QUANTIFIERELIM_TIME: 3.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 219, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 8, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 42, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 1.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 16, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 656, DAG_COMPRESSION_RETAINED_NODES: 153, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((((((2 == len) && (\old(data) == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1)) || ((((((\old(data) == 1) && (len == 1)) && (data == 1)) && (len == 2)) && (2 == \old(len))) && (data == 1))) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 2147483646)) && (len <= 2)) || (((i == 0) && (data == 1)) && (len == 2))) - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-02 17:34:19,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62ec1879-e5af-4e97-9454-7b343fafae4b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE