./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82b98e74657ce84706a43470df686c21fc227d1db1df507636ad5f146dee0144 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:21:15,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:21:15,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:21:15,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:21:15,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:21:15,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:21:15,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:21:15,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:21:15,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:21:15,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:21:15,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:21:15,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:21:15,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:21:15,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:21:15,281 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:21:15,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:21:15,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:21:15,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:21:15,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:21:15,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:21:15,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:21:15,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:21:15,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:21:15,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:21:15,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:21:15,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:21:15,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:21:15,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:21:15,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:21:15,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:21:15,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:21:15,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:21:15,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:21:15,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:21:15,286 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 82b98e74657ce84706a43470df686c21fc227d1db1df507636ad5f146dee0144 [2024-11-13 16:21:15,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:21:15,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:21:15,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:21:15,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:21:15,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:21:15,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c Unable to find full path for "g++" [2024-11-13 16:21:17,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:21:17,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:21:17,866 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c [2024-11-13 16:21:17,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/data/11b471531/43ec6d62a00240449d92226c9dde07c8/FLAGe6f60aeb9 [2024-11-13 16:21:18,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/data/11b471531/43ec6d62a00240449d92226c9dde07c8 [2024-11-13 16:21:18,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:21:18,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:21:18,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:21:18,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:21:18,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:21:18,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10571aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18, skipping insertion in model container [2024-11-13 16:21:18,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:21:18,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:21:18,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:21:18,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:21:18,411 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:21:18,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18 WrapperNode [2024-11-13 16:21:18,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:21:18,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:21:18,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:21:18,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:21:18,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,450 INFO L138 Inliner]: procedures = 18, calls = 83, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2024-11-13 16:21:18,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:21:18,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:21:18,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:21:18,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:21:18,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,511 INFO L175 MemorySlicer]: Split 53 memory accesses to 5 slices as follows [2, 16, 16, 8, 11]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 2, 1, 3]. [2024-11-13 16:21:18,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:21:18,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:21:18,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:21:18,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:21:18,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (1/1) ... [2024-11-13 16:21:18,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:21:18,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:21:18,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:21:18,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:21:18,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:21:18,624 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_36_0 [2024-11-13 16:21:18,624 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_36_0 [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:21:18,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:21:18,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 16:21:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:21:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:21:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:21:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:21:18,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:21:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 16:21:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_38_to_43_0 [2024-11-13 16:21:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_38_to_43_0 [2024-11-13 16:21:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_46_to_51_0 [2024-11-13 16:21:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_46_to_51_0 [2024-11-13 16:21:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:21:18,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:21:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:21:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:21:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:21:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:21:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 16:21:18,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:21:18,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:21:18,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:21:18,757 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:21:18,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:21:19,654 INFO L? ?]: Removed 229 outVars from TransFormulas that were not future-live. [2024-11-13 16:21:19,654 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:21:19,683 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:21:19,683 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 16:21:19,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:21:19 BoogieIcfgContainer [2024-11-13 16:21:19,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:21:19,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:21:19,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:21:19,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:21:19,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:21:18" (1/3) ... [2024-11-13 16:21:19,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8200a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:21:19, skipping insertion in model container [2024-11-13 16:21:19,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:21:18" (2/3) ... [2024-11-13 16:21:19,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8200a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:21:19, skipping insertion in model container [2024-11-13 16:21:19,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:21:19" (3/3) ... [2024-11-13 16:21:19,701 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_fermat1-ll.c [2024-11-13 16:21:19,720 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:21:19,723 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_fermat1-ll.c that has 6 procedures, 233 locations, 1 initial locations, 0 loop locations, and 92 error locations. [2024-11-13 16:21:19,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:21:19,858 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=PETRI_NET, 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;@77d14e13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:21:19,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-11-13 16:21:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 233 states, 123 states have (on average 1.8130081300813008) internal successors, (223), 218 states have internal predecessors, (223), 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) [2024-11-13 16:21:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 16:21:19,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:19,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 16:21:19,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_33_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_33_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-11-13 16:21:19,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:19,879 INFO L85 PathProgramCache]: Analyzing trace with hash 207603, now seen corresponding path program 1 times [2024-11-13 16:21:19,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:19,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156236821] [2024-11-13 16:21:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:21:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156236821] [2024-11-13 16:21:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156236821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:20,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:20,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:21:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405895186] [2024-11-13 16:21:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:20,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:21:20,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:20,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:21:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,167 INFO L87 Difference]: Start difference. First operand has 233 states, 123 states have (on average 1.8130081300813008) internal successors, (223), 218 states have internal predecessors, (223), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:21:20,309 INFO L93 Difference]: Finished difference Result 447 states and 489 transitions. [2024-11-13 16:21:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:21:20,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-13 16:21:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:21:20,325 INFO L225 Difference]: With dead ends: 447 [2024-11-13 16:21:20,326 INFO L226 Difference]: Without dead ends: 220 [2024-11-13 16:21:20,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,337 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:21:20,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 420 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:21:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-13 16:21:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-13 16:21:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 118 states have (on average 1.7457627118644068) internal successors, (206), 206 states have internal predecessors, (206), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:21:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 228 transitions. [2024-11-13 16:21:20,403 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 228 transitions. Word has length 3 [2024-11-13 16:21:20,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:21:20,403 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 228 transitions. [2024-11-13 16:21:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 228 transitions. [2024-11-13 16:21:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 16:21:20,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:20,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 16:21:20,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:21:20,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_33_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_33_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-11-13 16:21:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash 6435908, now seen corresponding path program 1 times [2024-11-13 16:21:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:20,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884466592] [2024-11-13 16:21:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:21:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884466592] [2024-11-13 16:21:20,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884466592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:20,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:20,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:21:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477855720] [2024-11-13 16:21:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:20,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:21:20,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:20,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:21:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,526 INFO L87 Difference]: Start difference. First operand 220 states and 228 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:21:20,633 INFO L93 Difference]: Finished difference Result 220 states and 228 transitions. [2024-11-13 16:21:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:21:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 16:21:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:21:20,635 INFO L225 Difference]: With dead ends: 220 [2024-11-13 16:21:20,635 INFO L226 Difference]: Without dead ends: 216 [2024-11-13 16:21:20,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,637 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 14 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:21:20,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 407 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:21:20,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-13 16:21:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-13 16:21:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 118 states have (on average 1.7118644067796611) internal successors, (202), 202 states have internal predecessors, (202), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:21:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 224 transitions. [2024-11-13 16:21:20,657 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 224 transitions. Word has length 4 [2024-11-13 16:21:20,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:21:20,657 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 224 transitions. [2024-11-13 16:21:20,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 224 transitions. [2024-11-13 16:21:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:21:20,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:20,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:21:20,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_33_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_33_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-11-13 16:21:20,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash -531863416, now seen corresponding path program 1 times [2024-11-13 16:21:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726084741] [2024-11-13 16:21:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:21:20,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330140854] [2024-11-13 16:21:20,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:20,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:21:20,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:21:20,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:21:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:20,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:21:20,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:21:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:21:20,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:21:20,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:20,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726084741] [2024-11-13 16:21:20,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:21:20,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330140854] [2024-11-13 16:21:20,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330140854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:20,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:20,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:21:20,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644611806] [2024-11-13 16:21:20,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:20,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:21:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:20,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:21:20,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,873 INFO L87 Difference]: Start difference. First operand 216 states and 224 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:21:20,931 INFO L93 Difference]: Finished difference Result 216 states and 224 transitions. [2024-11-13 16:21:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:21:20,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 16:21:20,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:21:20,933 INFO L225 Difference]: With dead ends: 216 [2024-11-13 16:21:20,934 INFO L226 Difference]: Without dead ends: 214 [2024-11-13 16:21:20,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:21:20,935 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 10 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:21:20,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 407 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:21:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-13 16:21:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-13 16:21:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 118 states have (on average 1.694915254237288) internal successors, (200), 200 states have internal predecessors, (200), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:21:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 222 transitions. [2024-11-13 16:21:20,951 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 222 transitions. Word has length 8 [2024-11-13 16:21:20,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:21:20,951 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 222 transitions. [2024-11-13 16:21:20,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:21:20,951 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 222 transitions. [2024-11-13 16:21:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 16:21:20,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:20,952 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:20,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:21:21,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:21,157 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_33_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_33_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-11-13 16:21:21,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:21,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1154191927, now seen corresponding path program 1 times [2024-11-13 16:21:21,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:21,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649909627] [2024-11-13 16:21:21,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:21:21,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235543415] [2024-11-13 16:21:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:21,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:21,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:21:21,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:21:21,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:21:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:21:21,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:21:21,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:21:21,450 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 15 treesize of output 1 [2024-11-13 16:21:21,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:21:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:21:21,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:21:21,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:21:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649909627] [2024-11-13 16:21:21,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 16:21:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235543415] [2024-11-13 16:21:21,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235543415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:21:21,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:21:21,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:21:21,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353192260] [2024-11-13 16:21:21,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:21:21,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:21:21,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:21:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:21:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:21:21,645 INFO L87 Difference]: Start difference. First operand 214 states and 222 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:21:21,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:21:21,812 INFO L93 Difference]: Finished difference Result 214 states and 222 transitions. [2024-11-13 16:21:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:21:21,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-11-13 16:21:21,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:21:21,815 INFO L225 Difference]: With dead ends: 214 [2024-11-13 16:21:21,815 INFO L226 Difference]: Without dead ends: 213 [2024-11-13 16:21:21,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:21:21,817 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 203 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:21:21,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 592 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:21:21,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-13 16:21:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-13 16:21:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 118 states have (on average 1.6864406779661016) internal successors, (199), 199 states have internal predecessors, (199), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:21:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 221 transitions. [2024-11-13 16:21:21,836 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 221 transitions. Word has length 27 [2024-11-13 16:21:21,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:21:21,838 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 221 transitions. [2024-11-13 16:21:21,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:21:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 221 transitions. [2024-11-13 16:21:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 16:21:21,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:21:21,839 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:21:21,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:21:22,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f834f-508b-4212-8ece-42dec2785c12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:21:22,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_33_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_33_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 90 more)] === [2024-11-13 16:21:22,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:21:22,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1420211612, now seen corresponding path program 1 times [2024-11-13 16:21:22,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:21:22,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527382193] [2024-11-13 16:21:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:21:22,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:21:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat