./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje --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 0b80e2ef69643fec3bd55c601a96e927d74716f095bc90a0498778af08019697 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:25:02,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:25:02,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:25:02,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:25:02,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:25:02,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:25:02,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:25:02,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:25:02,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:25:02,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:25:02,245 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:25:02,247 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:25:02,247 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:25:02,249 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:25:02,250 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:25:02,250 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:25:02,251 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:25:02,251 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:25:02,252 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:25:02,255 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:25:02,255 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:25:02,256 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:25:02,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:25:02,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:25:02,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:25:02,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:25:02,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:25:02,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:25:02,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:25:02,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:25:02,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:25:02,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:25:02,263 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:25:02,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:25:02,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:25:02,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:25:02,267 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:25:02,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:25:02,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:25:02,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:25:02,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:02,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:25:02,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:25:02,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:25:02,271 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:25:02,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:25:02,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:25:02,272 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:25:02,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:25:02,272 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_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b80e2ef69643fec3bd55c601a96e927d74716f095bc90a0498778af08019697 [2024-11-09 07:25:02,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:25:02,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:25:02,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:25:02,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:25:02,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:25:02,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c Unable to find full path for "g++" [2024-11-09 07:25:04,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:25:04,997 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:25:04,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c [2024-11-09 07:25:05,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/4cbae908c/798a928281f64bd08122f30836bec513/FLAG99e0fe33c [2024-11-09 07:25:05,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/4cbae908c/798a928281f64bd08122f30836bec513 [2024-11-09 07:25:05,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:25:05,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:25:05,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:05,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:25:05,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:25:05,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cca7715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05, skipping insertion in model container [2024-11-09 07:25:05,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:25:05,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:05,342 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:25:05,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:05,405 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:25:05,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05 WrapperNode [2024-11-09 07:25:05,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:05,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:05,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:25:05,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:25:05,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,473 INFO L138 Inliner]: procedures = 18, calls = 136, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2024-11-09 07:25:05,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:05,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:25:05,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:25:05,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:25:05,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:25:05,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:25:05,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:25:05,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:25:05,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (1/1) ... [2024-11-09 07:25:05,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:05,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:25:05,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:25:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:25:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:25:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:25:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:25:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_47_to_56_0 [2024-11-09 07:25:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_47_to_56_0 [2024-11-09 07:25:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_70_0 [2024-11-09 07:25:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_70_0 [2024-11-09 07:25:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:25:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_59_0 [2024-11-09 07:25:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_59_0 [2024-11-09 07:25:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:25:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:25:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:25:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:25:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:25:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:25:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:25:05,815 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:25:05,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:25:06,774 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-11-09 07:25:06,775 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:25:06,855 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:25:06,857 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 07:25:06,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:06 BoogieIcfgContainer [2024-11-09 07:25:06,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:25:06,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:25:06,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:25:06,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:25:06,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:05" (1/3) ... [2024-11-09 07:25:06,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25741fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:06, skipping insertion in model container [2024-11-09 07:25:06,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:05" (2/3) ... [2024-11-09 07:25:06,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25741fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:06, skipping insertion in model container [2024-11-09 07:25:06,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:06" (3/3) ... [2024-11-09 07:25:06,872 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_egcd3.c [2024-11-09 07:25:06,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:25:06,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-11-09 07:25:06,964 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:25:06,972 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;@f947190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:25:06,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 07:25:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 75 states have (on average 1.7466666666666666) internal successors, (131), 128 states have internal predecessors, (131), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:25:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:25:06,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:06,985 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:06,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:25:06,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1644476746, now seen corresponding path program 1 times [2024-11-09 07:25:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726346675] [2024-11-09 07:25:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:07,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:25:07,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:07,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726346675] [2024-11-09 07:25:07,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726346675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:07,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:07,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:07,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002633639] [2024-11-09 07:25:07,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:07,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:25:07,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:07,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:25:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:07,391 INFO L87 Difference]: Start difference. First operand has 144 states, 75 states have (on average 1.7466666666666666) internal successors, (131), 128 states have internal predecessors, (131), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:07,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:07,465 INFO L93 Difference]: Finished difference Result 280 states and 310 transitions. [2024-11-09 07:25:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:25:07,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2024-11-09 07:25:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:07,485 INFO L225 Difference]: With dead ends: 280 [2024-11-09 07:25:07,486 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 07:25:07,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:07,498 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:07,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:25:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 07:25:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-09 07:25:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 74 states have (on average 1.7027027027027026) internal successors, (126), 126 states have internal predecessors, (126), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:25:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 150 transitions. [2024-11-09 07:25:07,570 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 150 transitions. Word has length 16 [2024-11-09 07:25:07,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:07,576 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 150 transitions. [2024-11-09 07:25:07,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 150 transitions. [2024-11-09 07:25:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 07:25:07,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:07,578 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:07,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:25:07,581 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:25:07,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1299410764, now seen corresponding path program 1 times [2024-11-09 07:25:07,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:07,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449998562] [2024-11-09 07:25:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:07,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:25:09,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:09,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449998562] [2024-11-09 07:25:09,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449998562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:09,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:09,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 07:25:09,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749298797] [2024-11-09 07:25:09,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:09,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:25:09,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:25:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:25:09,223 INFO L87 Difference]: Start difference. First operand 141 states and 150 transitions. Second operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:09,929 INFO L93 Difference]: Finished difference Result 176 states and 187 transitions. [2024-11-09 07:25:09,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:25:09,930 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2024-11-09 07:25:09,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:09,934 INFO L225 Difference]: With dead ends: 176 [2024-11-09 07:25:09,934 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 07:25:09,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:25:09,936 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 82 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:09,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 795 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:25:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 07:25:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 143. [2024-11-09 07:25:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 75 states have (on average 1.6933333333333334) internal successors, (127), 127 states have internal predecessors, (127), 12 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-09 07:25:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2024-11-09 07:25:09,954 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 17 [2024-11-09 07:25:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:09,955 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2024-11-09 07:25:09,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2024-11-09 07:25:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:25:09,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:09,956 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] [2024-11-09 07:25:09,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:25:09,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_47_to_56_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:25:09,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:09,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1858796290, now seen corresponding path program 1 times [2024-11-09 07:25:09,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:09,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595952416] [2024-11-09 07:25:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:10,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878391881] [2024-11-09 07:25:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:10,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:10,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:10,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:10,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:25:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:10,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 131 conjuncts are in the unsatisfiable core [2024-11-09 07:25:10,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:10,896 INFO L349 Elim1Store]: treesize reduction 516, result has 5.7 percent of original size [2024-11-09 07:25:10,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 195 treesize of output 187 [2024-11-09 07:25:11,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-09 07:25:11,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2024-11-09 07:25:11,075 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 [2024-11-09 07:25:11,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:11,295 INFO L349 Elim1Store]: treesize reduction 594, result has 0.2 percent of original size [2024-11-09 07:25:11,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 33 case distinctions, treesize of input 151 treesize of output 1 [2024-11-09 07:25:11,443 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:11,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 232 treesize of output 1 [2024-11-09 07:25:11,637 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:11,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 27 case distinctions, treesize of input 606 treesize of output 1 [2024-11-09 07:25:11,795 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:11,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 141 treesize of output 1 [2024-11-09 07:25:11,962 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:11,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 186 treesize of output 1 [2024-11-09 07:25:11,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-09 07:25:11,995 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 8 treesize of output 1 [2024-11-09 07:25:12,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2024-11-09 07:25:12,037 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 8 treesize of output 1 [2024-11-09 07:25:12,189 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:12,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 157 treesize of output 1 [2024-11-09 07:25:12,334 INFO L349 Elim1Store]: treesize reduction 546, result has 0.2 percent of original size [2024-11-09 07:25:12,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 405 treesize of output 1 [2024-11-09 07:25:15,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:15,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 54 [2024-11-09 07:25:15,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2024-11-09 07:25:17,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:17,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 23 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-11-09 07:25:17,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:18,169 INFO L349 Elim1Store]: treesize reduction 744, result has 17.4 percent of original size [2024-11-09 07:25:18,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 31 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 72 case distinctions, treesize of input 80 treesize of output 209 [2024-11-09 07:25:35,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:35,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 26 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 56 [2024-11-09 07:25:36,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:25:36,055 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 07:25:36,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 30 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 57 [2024-11-09 07:25:36,564 INFO L349 Elim1Store]: treesize reduction 405, result has 22.3 percent of original size [2024-11-09 07:25:36,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 55 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 65 case distinctions, treesize of input 94 treesize of output 177 [2024-11-09 07:25:37,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 19 [2024-11-09 07:25:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:25:37,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:37,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:37,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595952416] [2024-11-09 07:25:37,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878391881] [2024-11-09 07:25:37,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878391881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:37,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:37,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-09 07:25:37,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887947592] [2024-11-09 07:25:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:37,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 07:25:37,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:37,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 07:25:37,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=227, Unknown=4, NotChecked=0, Total=272 [2024-11-09 07:25:37,129 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:25:40,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:43,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:46,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:48,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:51,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:54,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:57,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:25:58,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:02,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:04,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:07,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:09,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:11,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:12,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:14,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:15,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:17,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:18,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:25,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:26,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:28,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:29,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:31,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:32,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:34,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:37,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:38,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:40,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:43,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:44,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:46,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:47,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:49,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:52,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:55,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:56,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:58,493 INFO L93 Difference]: Finished difference Result 217 states and 234 transitions. [2024-11-09 07:26:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 07:26:58,494 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-09 07:26:58,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:58,496 INFO L225 Difference]: With dead ends: 217 [2024-11-09 07:26:58,496 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 07:26:58,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=80, Invalid=467, Unknown=5, NotChecked=0, Total=552 [2024-11-09 07:26:58,503 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 126 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 11 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:58,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1141 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 582 Invalid, 24 Unknown, 0 Unchecked, 74.2s Time] [2024-11-09 07:26:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 07:26:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 186. [2024-11-09 07:26:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 110 states have (on average 1.6636363636363636) internal successors, (183), 163 states have internal predecessors, (183), 18 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (21), 16 states have call predecessors, (21), 18 states have call successors, (21) [2024-11-09 07:26:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 222 transitions. [2024-11-09 07:26:58,575 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 222 transitions. Word has length 21 [2024-11-09 07:26:58,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:58,576 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 222 transitions. [2024-11-09 07:26:58,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 222 transitions. [2024-11-09 07:26:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:26:58,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:58,582 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] [2024-11-09 07:26:58,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:26:58,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:58,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_33_to_70_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:26:58,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:58,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1857326438, now seen corresponding path program 1 times [2024-11-09 07:26:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:58,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709684691] [2024-11-09 07:26:58,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:58,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:26:59,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126937062] [2024-11-09 07:26:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:59,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:59,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:59,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:59,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:26:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:59,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-09 07:26:59,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:59,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,533 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:26:59,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 99 [2024-11-09 07:26:59,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,785 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:26:59,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 176 treesize of output 174 [2024-11-09 07:26:59,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:26:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,052 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:00,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 182 [2024-11-09 07:27:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,303 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:00,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 138 treesize of output 136 [2024-11-09 07:27:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,581 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:00,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 108 treesize of output 99 [2024-11-09 07:27:00,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,871 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:00,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 99 [2024-11-09 07:27:00,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:00,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:01,094 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:01,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 99 [2024-11-09 07:27:01,314 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:01,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:01,525 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:01,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:01,733 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:01,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 182 [2024-11-09 07:27:01,951 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:01,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 171 treesize of output 174 [2024-11-09 07:27:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:02,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:02,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:02,217 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:02,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 99 [2024-11-09 07:27:02,444 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:02,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:02,669 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:02,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 133 treesize of output 136 [2024-11-09 07:27:02,868 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:02,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 184 treesize of output 183 [2024-11-09 07:27:03,065 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:03,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 361 treesize of output 360 [2024-11-09 07:27:03,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:03,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:03,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:03,337 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:03,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 161 [2024-11-09 07:27:03,569 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:03,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 161 [2024-11-09 07:27:03,797 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:03,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 161 [2024-11-09 07:27:04,034 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:04,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 371 treesize of output 374 [2024-11-09 07:27:04,264 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:04,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 07:27:04,495 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:04,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:04,699 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:04,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:04,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:04,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:04,935 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:04,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 99 [2024-11-09 07:27:05,124 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:05,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 115 treesize of output 120 [2024-11-09 07:27:05,311 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:05,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:05,492 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:05,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 186 treesize of output 191 [2024-11-09 07:27:05,676 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:05,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 179 treesize of output 182 [2024-11-09 07:27:05,891 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:05,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 356 treesize of output 359 [2024-11-09 07:27:06,142 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:06,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 168 treesize of output 173 [2024-11-09 07:27:06,365 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:06,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 213 treesize of output 212 [2024-11-09 07:27:06,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:06,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:06,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:06,635 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:06,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 196 treesize of output 194 [2024-11-09 07:27:06,858 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:06,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 191 treesize of output 194 [2024-11-09 07:27:07,031 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:07,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 218 treesize of output 223 [2024-11-09 07:27:07,288 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:07,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 191 treesize of output 194 [2024-11-09 07:27:07,473 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:07,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:07,662 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:07,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:07,872 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:07,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 182 [2024-11-09 07:27:08,086 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:08,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 171 treesize of output 174 [2024-11-09 07:27:08,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:08,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:08,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:08,321 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:08,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 99 [2024-11-09 07:27:08,523 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:08,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:08,706 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:08,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 133 treesize of output 136 [2024-11-09 07:27:08,892 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:08,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 99 [2024-11-09 07:27:09,075 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:09,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:09,248 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:09,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 181 treesize of output 182 [2024-11-09 07:27:09,424 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:09,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 171 treesize of output 174 [2024-11-09 07:27:09,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:09,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:09,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:09,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:09,650 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:09,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 103 treesize of output 99 [2024-11-09 07:27:09,832 INFO L349 Elim1Store]: treesize reduction 308, result has 7.8 percent of original size [2024-11-09 07:27:09,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 98 treesize of output 99 [2024-11-09 07:27:10,019 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:10,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 133 treesize of output 136 [2024-11-09 07:27:10,218 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:10,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 133 treesize of output 136 [2024-11-09 07:27:10,420 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:10,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 120 [2024-11-09 07:27:10,617 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:10,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 270 treesize of output 275 [2024-11-09 07:27:10,802 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:10,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 349 treesize of output 352 [2024-11-09 07:27:10,990 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:10,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 120 [2024-11-09 07:27:11,182 INFO L349 Elim1Store]: treesize reduction 268, result has 8.8 percent of original size [2024-11-09 07:27:11,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 94 treesize of output 99 [2024-11-09 07:27:11,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:11,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:11,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:11,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:27:11,403 INFO L349 Elim1Store]: treesize reduction 284, result has 8.4 percent of original size [2024-11-09 07:27:11,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 120 [2024-11-09 07:27:18,434 INFO L349 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2024-11-09 07:27:18,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2024-11-09 07:27:18,463 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 8 treesize of output 7 [2024-11-09 07:27:20,448 INFO L349 Elim1Store]: treesize reduction 53, result has 92.7 percent of original size [2024-11-09 07:27:20,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 286 treesize of output 921 [2024-11-09 07:35:06,854 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-09 07:35:06,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-11-09 07:35:06,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:35:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709684691] [2024-11-09 07:35:06,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:35:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126937062] [2024-11-09 07:35:06,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-09 07:35:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1652125363] [2024-11-09 07:35:06,882 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 07:35:06,882 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:35:06,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:35:06,895 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:35:06,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:35:06,933 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-09 07:35:06,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:35:06,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2024-11-09 07:35:06,939 ERROR L171 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2024-11-09 07:35:06,939 INFO L325 BasicCegarLoop]: Counterexample might be feasible [2024-11-09 07:35:06,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-09 07:35:06,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-09 07:35:06,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-09 07:35:06,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-09 07:35:06,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-09 07:35:06,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-09 07:35:06,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-09 07:35:06,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-09 07:35:06,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-09 07:35:06,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-09 07:35:06,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-09 07:35:06,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-09 07:35:06,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-09 07:35:06,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-09 07:35:06,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-09 07:35:06,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-09 07:35:06,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-09 07:35:06,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-09 07:35:06,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-09 07:35:06,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 50 remaining) [2024-11-09 07:35:06,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 50 remaining) [2024-11-09 07:35:06,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-09 07:35:06,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-09 07:35:06,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-09 07:35:06,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-09 07:35:06,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-09 07:35:06,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-09 07:35:06,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-09 07:35:06,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-09 07:35:06,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-09 07:35:06,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-09 07:35:06,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-09 07:35:06,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-09 07:35:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_47_to_56_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-09 07:35:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-09 07:35:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-09 07:35:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-09 07:35:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-09 07:35:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-09 07:35:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-09 07:35:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_33_to_70_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-09 07:35:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_40_to_59_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-09 07:35:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_40_to_59_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-09 07:35:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_40_to_59_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-09 07:35:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_40_to_59_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-09 07:35:06,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:35:07,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:35:07,167 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:35:07,184 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:35:07,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:35:07 BoogieIcfgContainer [2024-11-09 07:35:07,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:35:07,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:35:07,189 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:35:07,189 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:35:07,190 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:06" (3/4) ... [2024-11-09 07:35:07,193 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:35:07,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:35:07,195 INFO L158 Benchmark]: Toolchain (without parser) took 602162.96ms. Allocated memory was 136.3MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 99.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,196 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:35:07,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.47ms. Allocated memory is still 136.3MB. Free memory was 98.9MB in the beginning and 84.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.50ms. Allocated memory is still 136.3MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,197 INFO L158 Benchmark]: Boogie Preprocessor took 41.73ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 80.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,197 INFO L158 Benchmark]: RCFGBuilder took 1337.72ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 80.5MB in the beginning and 149.3MB in the end (delta: -68.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,198 INFO L158 Benchmark]: TraceAbstraction took 600325.83ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-11-09 07:35:07,198 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 1.4GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:35:07,200 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.47ms. Allocated memory is still 136.3MB. Free memory was 98.9MB in the beginning and 84.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.50ms. Allocated memory is still 136.3MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.73ms. Allocated memory is still 136.3MB. Free memory was 82.6MB in the beginning and 80.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1337.72ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 80.5MB in the beginning and 149.3MB in the end (delta: -68.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * TraceAbstraction took 600325.83ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 148.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 1.4GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 122]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L136] int x; [L137] int y; [L138] int a; [L139] int b; [L140] int p; [L141] int q; [L142] int r; [L143] int s; [L144] x = __VERIFIER_nondet_int() [L145] y = __VERIFIER_nondet_int() [L146] EXPR \read(x) [L146] CALL assume_abort_if_not(x >= 1) [L22] COND FALSE !(!cond) [L146] RET assume_abort_if_not(x >= 1) [L147] EXPR \read(y) [L147] CALL assume_abort_if_not(y >= 1) [L22] COND FALSE !(!cond) [L147] RET assume_abort_if_not(y >= 1) [L148] EXPR \read(x) [L148] a = x [L149] EXPR \read(y) [L149] b = y [L150] p = 1 [L151] q = 0 [L152] r = 0 [L153] s = 1 [L154] CALL func_to_recursive_line_33_to_70_0(&b, &p, &r, &x, &q, &s, &y, &a) [L105] EXPR \read(*b) [L105] COND FALSE !(!((*b) != 0)) [L112] int c; [L113] int k; [L114] EXPR \read(*a) [L114] c = *a [L115] k = 0 [L116] CALL func_to_recursive_line_40_to_59_0(&k, &(*b), &(*p), &(*x), &(*r), &(*q), &(*s), &(*y), &(*a), &c) [L78] EXPR \read(*c) [L78] EXPR \read(*b) [L78] COND TRUE !((*c) >= (*b)) [L116] RET func_to_recursive_line_40_to_59_0(&k, &(*b), &(*p), &(*x), &(*r), &(*q), &(*s), &(*y), &(*a), &c) [L117] EXPR \read(*b) [L117] *a = *b [L118] EXPR \read(c) [L118] *b = c [L119] int temp; [L120] EXPR \read(*p) [L120] temp = *p [L121] EXPR \read(*q) [L121] *p = *q [L122] EXPR \read(*q) [L122] EXPR \read(k) [L122] (*q) * k - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 155]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 122]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 122]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 122]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 144 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 600.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 82.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 74.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 2086 SdHoareTripleChecker+Invalid, 55.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1701 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 911 IncrementalHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 385 mSDtfsCounter, 911 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 24.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 3 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 515.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 16 QuantifiedInterpolants, 3543 SizeOfPredicates, 42 NumberOfNonLiveVariables, 869 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje --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 0b80e2ef69643fec3bd55c601a96e927d74716f095bc90a0498778af08019697 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:35:09,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:35:10,030 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2024-11-09 07:35:10,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:35:10,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:35:10,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:35:10,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:35:10,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:35:10,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:35:10,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:35:10,095 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:35:10,096 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:35:10,096 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:35:10,097 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:35:10,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:35:10,097 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:35:10,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:35:10,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:35:10,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:35:10,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:35:10,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:35:10,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:35:10,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:35:10,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:35:10,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:35:10,107 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:35:10,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:35:10,108 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:35:10,108 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:35:10,109 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:35:10,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:35:10,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:35:10,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:35:10,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:35:10,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:35:10,110 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:35:10,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:35:10,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:35:10,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:35:10,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:35:10,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:35:10,114 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:35:10,114 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:35:10,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:35:10,115 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:35:10,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b80e2ef69643fec3bd55c601a96e927d74716f095bc90a0498778af08019697 [2024-11-09 07:35:10,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:35:10,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:35:10,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:35:10,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:35:10,687 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:35:10,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c Unable to find full path for "g++" [2024-11-09 07:35:13,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:35:13,479 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:35:13,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/sv-benchmarks/c/recursified_nla-digbench/recursified_egcd3.c [2024-11-09 07:35:13,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/08414a2ac/bdb4a808509c4b82829d218812473850/FLAGa7bc70f0f [2024-11-09 07:35:13,523 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/data/08414a2ac/bdb4a808509c4b82829d218812473850 [2024-11-09 07:35:13,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:35:13,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:35:13,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:35:13,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:35:13,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:35:13,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:35:13" (1/1) ... [2024-11-09 07:35:13,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be7bd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:13, skipping insertion in model container [2024-11-09 07:35:13,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:35:13" (1/1) ... [2024-11-09 07:35:13,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:35:13,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:35:13,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:35:14,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:35:14,076 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:35:14,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14 WrapperNode [2024-11-09 07:35:14,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:35:14,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:35:14,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:35:14,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:35:14,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,160 INFO L138 Inliner]: procedures = 20, calls = 136, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 121 [2024-11-09 07:35:14,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:35:14,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:35:14,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:35:14,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:35:14,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:35:14,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:35:14,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:35:14,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:35:14,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (1/1) ... [2024-11-09 07:35:14,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:35:14,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:35:14,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:35:14,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:35:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:35:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:35:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:35:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:35:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_47_to_56_0 [2024-11-09 07:35:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_47_to_56_0 [2024-11-09 07:35:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_70_0 [2024-11-09 07:35:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_70_0 [2024-11-09 07:35:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:35:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_59_0 [2024-11-09 07:35:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_59_0 [2024-11-09 07:35:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:35:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:35:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:35:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:35:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:35:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:35:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:35:14,533 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:35:14,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:35:21,377 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-11-09 07:35:21,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:35:21,402 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:35:21,403 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 07:35:21,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:35:21 BoogieIcfgContainer [2024-11-09 07:35:21,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:35:21,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:35:21,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:35:21,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:35:21,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:35:13" (1/3) ... [2024-11-09 07:35:21,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e10746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:21, skipping insertion in model container [2024-11-09 07:35:21,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:14" (2/3) ... [2024-11-09 07:35:21,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e10746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:21, skipping insertion in model container [2024-11-09 07:35:21,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:35:21" (3/3) ... [2024-11-09 07:35:21,413 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_egcd3.c [2024-11-09 07:35:21,430 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:35:21,430 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-11-09 07:35:21,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:35:21,545 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;@5716c4be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:35:21,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 07:35:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 137 states have internal predecessors, (142), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:35:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:35:21,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:35:21,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:35:21,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:35:21,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:35:21,572 INFO L85 PathProgramCache]: Analyzing trace with hash 347713176, now seen corresponding path program 1 times [2024-11-09 07:35:21,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:35:21,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074534259] [2024-11-09 07:35:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:35:21,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:35:21,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:35:21,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:35:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:35:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:35:21,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:35:21,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:35:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:35:21,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:35:21,883 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:35:21,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074534259] [2024-11-09 07:35:21,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074534259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:35:21,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:35:21,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:35:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801921457] [2024-11-09 07:35:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:35:21,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:35:21,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:35:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:35:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:35:21,931 INFO L87 Difference]: Start difference. First operand has 153 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 137 states have internal predecessors, (142), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:35:22,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:35:22,011 INFO L93 Difference]: Finished difference Result 302 states and 344 transitions. [2024-11-09 07:35:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:35:22,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-09 07:35:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:35:22,034 INFO L225 Difference]: With dead ends: 302 [2024-11-09 07:35:22,037 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 07:35:22,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:35:22,056 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:35:22,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:35:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 07:35:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-09 07:35:22,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 79 states have (on average 1.6582278481012658) internal successors, (131), 131 states have internal predecessors, (131), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:35:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 155 transitions. [2024-11-09 07:35:22,141 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 155 transitions. Word has length 21 [2024-11-09 07:35:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:35:22,145 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 155 transitions. [2024-11-09 07:35:22,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:35:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 155 transitions. [2024-11-09 07:35:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 07:35:22,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:35:22,148 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:35:22,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:35:22,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:35:22,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 07:35:22,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:35:22,354 INFO L85 PathProgramCache]: Analyzing trace with hash -285387742, now seen corresponding path program 1 times [2024-11-09 07:35:22,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:35:22,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861891982] [2024-11-09 07:35:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:35:22,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:35:22,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:35:22,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:35:22,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f8f2b5a-aa59-47a9-88f3-5cf36a178d8b/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:35:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:35:22,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 07:35:22,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:35:22,991 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 13 treesize of output 1 [2024-11-09 07:35:23,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:35:23,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:35:23,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 8912 treesize of output 8930 [2024-11-09 07:35:36,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:35:36,753 INFO L349 Elim1Store]: treesize reduction 139, result has 31.5 percent of original size [2024-11-09 07:35:36,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 191 treesize of output 104 [2024-11-09 07:35:40,007 INFO L349 Elim1Store]: treesize reduction 731, result has 20.7 percent of original size [2024-11-09 07:35:40,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 33 case distinctions, treesize of input 178 treesize of output 382 [2024-11-09 07:35:41,447 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 8 treesize of output 7 [2024-11-09 07:35:41,535 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 8 treesize of output 7 [2024-11-09 07:35:41,846 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 8 treesize of output 7 [2024-11-09 07:35:57,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:35:57,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:35:57,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:35:57,775 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 17 treesize of output 13 [2024-11-09 07:35:57,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:35:58,101 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 15 treesize of output 11 [2024-11-09 07:35:58,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:35:58,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2024-11-09 07:36:05,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:36:05,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 459 treesize of output 725