./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2 --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 9ae1eacd45e2434e505261d43bb17259916099964617682d271ef41fa1c24d0c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:57,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:57,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:25:57,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:57,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:57,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:57,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:57,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:57,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:57,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:57,881 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:57,881 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:57,881 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:57,884 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:57,884 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:57,884 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:57,885 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:57,885 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:57,885 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:57,886 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:57,886 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:57,891 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:57,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:57,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:57,892 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:57,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:57,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:57,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:57,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:57,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:57,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:57,895 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:57,896 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:25:57,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:25:57,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:57,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:57,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:57,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:57,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:57,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:57,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:57,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:57,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:57,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:57,899 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:57,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:57,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:57,900 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:57,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:57,901 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_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae1eacd45e2434e505261d43bb17259916099964617682d271ef41fa1c24d0c [2024-11-02 11:25:58,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:58,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:58,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:58,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:58,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:58,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c Unable to find full path for "g++" [2024-11-02 11:26:00,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:26:00,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:26:00,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat2-ll.c [2024-11-02 11:26:00,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/data/79abaee8a/71f8989ddd974a44be7447582043d989/FLAG00968129c [2024-11-02 11:26:01,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/data/79abaee8a/71f8989ddd974a44be7447582043d989 [2024-11-02 11:26:01,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:26:01,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:26:01,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:01,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:26:01,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:26:01,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c1a086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01, skipping insertion in model container [2024-11-02 11:26:01,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:26:01,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:01,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:26:01,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:01,395 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:26:01,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01 WrapperNode [2024-11-02 11:26:01,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:01,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:01,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:26:01,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:26:01,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,432 INFO L138 Inliner]: procedures = 16, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2024-11-02 11:26:01,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:01,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:26:01,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:26:01,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:26:01,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:26:01,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:26:01,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:26:01,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:26:01,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (1/1) ... [2024-11-02 11:26:01,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:26:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:26:01,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:26:01,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:26:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:26:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:26:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:26:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:26:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:26:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_42_0 [2024-11-02 11:26:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_42_0 [2024-11-02 11:26:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:26:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:26:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:26:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:26:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 11:26:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 11:26:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:26:01,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:26:01,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:26:02,397 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-02 11:26:02,397 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:26:02,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:26:02,463 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:26:02,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:02 BoogieIcfgContainer [2024-11-02 11:26:02,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:26:02,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:26:02,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:26:02,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:26:02,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:26:01" (1/3) ... [2024-11-02 11:26:02,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:02, skipping insertion in model container [2024-11-02 11:26:02,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:01" (2/3) ... [2024-11-02 11:26:02,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:02, skipping insertion in model container [2024-11-02 11:26:02,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:02" (3/3) ... [2024-11-02 11:26:02,478 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_fermat2-ll.c [2024-11-02 11:26:02,500 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:26:02,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-11-02 11:26:02,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:26:02,576 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bd24520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:26:02,576 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-02 11:26:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 69 states have (on average 1.855072463768116) internal successors, (128), 126 states have internal predecessors, (128), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-02 11:26:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-02 11:26:02,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:02,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-02 11:26:02,588 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-02 11:26:02,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash 6544, now seen corresponding path program 1 times [2024-11-02 11:26:02,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:02,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842900724] [2024-11-02 11:26:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:02,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:26:02,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:02,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842900724] [2024-11-02 11:26:02,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842900724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:02,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:02,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:26:02,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915495645] [2024-11-02 11:26:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:02,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:02,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:02,947 INFO L87 Difference]: Start difference. First operand has 135 states, 69 states have (on average 1.855072463768116) internal successors, (128), 126 states have internal predecessors, (128), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:03,060 INFO L93 Difference]: Finished difference Result 175 states and 180 transitions. [2024-11-02 11:26:03,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:03,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-11-02 11:26:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:03,075 INFO L225 Difference]: With dead ends: 175 [2024-11-02 11:26:03,076 INFO L226 Difference]: Without dead ends: 126 [2024-11-02 11:26:03,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:03,084 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 15 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:03,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 210 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:26:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-02 11:26:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-02 11:26:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 68 states have (on average 1.75) internal successors, (119), 118 states have internal predecessors, (119), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 11:26:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2024-11-02 11:26:03,132 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 2 [2024-11-02 11:26:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:03,133 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2024-11-02 11:26:03,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2024-11-02 11:26:03,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 11:26:03,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:03,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 11:26:03,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:26:03,134 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-02 11:26:03,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:03,135 INFO L85 PathProgramCache]: Analyzing trace with hash 202900, now seen corresponding path program 1 times [2024-11-02 11:26:03,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:03,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741848232] [2024-11-02 11:26:03,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:03,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:26:03,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:03,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741848232] [2024-11-02 11:26:03,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741848232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:03,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:03,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:26:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818273381] [2024-11-02 11:26:03,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:03,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:03,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:03,209 INFO L87 Difference]: Start difference. First operand 126 states and 129 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:03,278 INFO L93 Difference]: Finished difference Result 126 states and 129 transitions. [2024-11-02 11:26:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:03,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2024-11-02 11:26:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:03,282 INFO L225 Difference]: With dead ends: 126 [2024-11-02 11:26:03,282 INFO L226 Difference]: Without dead ends: 122 [2024-11-02 11:26:03,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:03,285 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 14 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:03,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 204 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:26:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-02 11:26:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-02 11:26:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 114 states have internal predecessors, (115), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 11:26:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2024-11-02 11:26:03,311 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 3 [2024-11-02 11:26:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:03,315 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2024-11-02 11:26:03,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2024-11-02 11:26:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:26:03,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:03,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:03,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:26:03,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-02 11:26:03,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:03,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1594978280, now seen corresponding path program 1 times [2024-11-02 11:26:03,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:03,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011462442] [2024-11-02 11:26:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:03,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:26:03,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704055755] [2024-11-02 11:26:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:03,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:26:03,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:26:03,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:26:03,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:26:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:03,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 11:26:03,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:26:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:26:03,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:26:03,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011462442] [2024-11-02 11:26:03,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 11:26:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704055755] [2024-11-02 11:26:03,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704055755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:26:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232429685] [2024-11-02 11:26:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:03,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:03,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:03,545 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:03,606 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2024-11-02 11:26:03,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:03,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-11-02 11:26:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:03,608 INFO L225 Difference]: With dead ends: 122 [2024-11-02 11:26:03,608 INFO L226 Difference]: Without dead ends: 120 [2024-11-02 11:26:03,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:03,610 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 10 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:03,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 204 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:26:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-02 11:26:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-02 11:26:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 68 states have (on average 1.661764705882353) internal successors, (113), 112 states have internal predecessors, (113), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 11:26:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 123 transitions. [2024-11-02 11:26:03,624 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 123 transitions. Word has length 7 [2024-11-02 11:26:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:03,625 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 123 transitions. [2024-11-02 11:26:03,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:26:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2024-11-02 11:26:03,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 11:26:03,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:03,626 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:03,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:26:03,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:26:03,831 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-02 11:26:03,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash -894175962, now seen corresponding path program 1 times [2024-11-02 11:26:03,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:03,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778960348] [2024-11-02 11:26:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:26:03,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020091337] [2024-11-02 11:26:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:03,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:26:03,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:26:03,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:26:03,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 11:26:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:04,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-02 11:26:04,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:26:04,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-02 11:26:04,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-02 11:26:04,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2024-11-02 11:26:04,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-02 11:26:04,597 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-02 11:26:04,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 42 [2024-11-02 11:26:04,657 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-02 11:26:04,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 43 [2024-11-02 11:26:04,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-02 11:26:04,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 3 [2024-11-02 11:26:04,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-02 11:26:04,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2024-11-02 11:26:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 11:26:04,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:26:04,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778960348] [2024-11-02 11:26:04,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 11:26:04,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020091337] [2024-11-02 11:26:04,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020091337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:04,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819902243] [2024-11-02 11:26:04,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:04,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:04,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:04,861 INFO L87 Difference]: Start difference. First operand 120 states and 123 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-02 11:26:06,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-02 11:26:09,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-02 11:26:11,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-02 11:26:13,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-02 11:26:15,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-02 11:26:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:15,155 INFO L93 Difference]: Finished difference Result 120 states and 123 transitions. [2024-11-02 11:26:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 [2024-11-02 11:26:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:15,158 INFO L225 Difference]: With dead ends: 120 [2024-11-02 11:26:15,158 INFO L226 Difference]: Without dead ends: 119 [2024-11-02 11:26:15,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:26:15,159 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 8 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:15,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 469 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 10.2s Time] [2024-11-02 11:26:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-02 11:26:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-02 11:26:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 111 states have internal predecessors, (112), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 11:26:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2024-11-02 11:26:15,171 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 22 [2024-11-02 11:26:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:15,172 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2024-11-02 11:26:15,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-02 11:26:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2024-11-02 11:26:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 11:26:15,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:15,174 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:15,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 11:26:15,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_044d15f1-5770-4905-b09b-394719b7b44a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:26:15,375 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-02 11:26:15,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1949650982, now seen corresponding path program 1 times [2024-11-02 11:26:15,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:15,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198497023] [2024-11-02 11:26:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat