./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fcc04ce578d0111a6c71cbc4293b8197f20da95a3a547b20b6c6dac6e888dc6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:22:42,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:22:42,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:22:42,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:22:42,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:22:42,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:22:42,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:22:42,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:22:42,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:22:42,674 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:22:42,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:22:42,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:22:42,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:22:42,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:22:42,675 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:22:42,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:22:42,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:22:42,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:22:42,676 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:22:42,678 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:22:42,678 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:22:42,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:22:42,678 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:22:42,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:42,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:42,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:42,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:22:42,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:22:42,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:22:42,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:22:42,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:22:42,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:22:42,681 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_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 0fcc04ce578d0111a6c71cbc4293b8197f20da95a3a547b20b6c6dac6e888dc6 [2024-11-24 01:22:43,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:22:43,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:22:43,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:22:43,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:22:43,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:22:43,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/gcd_3+newton_1_1.i [2024-11-24 01:22:45,959 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/7b9bb203c/ed4a8a3272654b2da2a6ee2bed74a33e/FLAG69d1304da [2024-11-24 01:22:46,275 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:22:46,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i [2024-11-24 01:22:46,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/7b9bb203c/ed4a8a3272654b2da2a6ee2bed74a33e/FLAG69d1304da [2024-11-24 01:22:46,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/7b9bb203c/ed4a8a3272654b2da2a6ee2bed74a33e [2024-11-24 01:22:46,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:22:46,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:22:46,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:46,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:22:46,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:22:46,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db81c2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46, skipping insertion in model container [2024-11-24 01:22:46,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:22:46,572 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[1226,1239] [2024-11-24 01:22:46,616 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[2820,2833] [2024-11-24 01:22:46,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:46,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:22:46,643 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[1226,1239] [2024-11-24 01:22:46,666 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[2820,2833] [2024-11-24 01:22:46,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:46,687 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:22:46,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46 WrapperNode [2024-11-24 01:22:46,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:46,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:46,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:22:46,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:22:46,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,744 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2024-11-24 01:22:46,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:46,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:22:46,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:22:46,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:22:46,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,770 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-24 01:22:46,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,775 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:22:46,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:22:46,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:22:46,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:22:46,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (1/1) ... [2024-11-24 01:22:46,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:46,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:46,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:22:46,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:22:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:22:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:22:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:22:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:22:46,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:22:46,909 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:22:46,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:22:47,173 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-24 01:22:47,173 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:22:47,184 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:22:47,184 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:22:47,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:47 BoogieIcfgContainer [2024-11-24 01:22:47,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:22:47,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:22:47,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:22:47,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:22:47,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:22:46" (1/3) ... [2024-11-24 01:22:47,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523bcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:47, skipping insertion in model container [2024-11-24 01:22:47,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:46" (2/3) ... [2024-11-24 01:22:47,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523bcbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:47, skipping insertion in model container [2024-11-24 01:22:47,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:47" (3/3) ... [2024-11-24 01:22:47,199 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_1.i [2024-11-24 01:22:47,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:22:47,220 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_1.i that has 1 procedures, 28 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-24 01:22:47,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:22:47,309 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;@6b5c2886, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:22:47,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:22:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 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) [2024-11-24 01:22:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:22:47,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:47,319 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:47,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:47,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:47,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1364836250, now seen corresponding path program 1 times [2024-11-24 01:22:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038995258] [2024-11-24 01:22:47,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:22:47,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:47,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038995258] [2024-11-24 01:22:47,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038995258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:47,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:47,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:22:47,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559893040] [2024-11-24 01:22:47,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:47,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:22:47,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:47,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:22:47,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:22:47,540 INFO L87 Difference]: Start difference. First operand has 28 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-24 01:22:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:47,557 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-24 01:22:47,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:22:47,559 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), 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 9 [2024-11-24 01:22:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:47,566 INFO L225 Difference]: With dead ends: 48 [2024-11-24 01:22:47,566 INFO L226 Difference]: Without dead ends: 20 [2024-11-24 01:22:47,570 INFO L434 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 [2024-11-24 01:22:47,573 INFO L435 NwaCegarLoop]: 32 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, 32 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 [2024-11-24 01:22:47,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-24 01:22:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-24 01:22:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-24 01:22:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-24 01:22:47,606 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2024-11-24 01:22:47,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:47,607 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-24 01:22:47,607 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), 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) [2024-11-24 01:22:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-24 01:22:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:22:47,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:47,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:47,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:22:47,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:47,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1422094552, now seen corresponding path program 1 times [2024-11-24 01:22:47,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:47,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780095672] [2024-11-24 01:22:47,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:47,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:22:47,656 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:22:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:22:47,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:22:47,694 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:22:47,696 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-24 01:22:47,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-24 01:22:47,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:22:47,703 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 01:22:47,716 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:22:47,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:22:47 BoogieIcfgContainer [2024-11-24 01:22:47,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:22:47,721 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:22:47,721 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:22:47,721 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:22:47,722 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:47" (3/4) ... [2024-11-24 01:22:47,724 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:22:47,725 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:22:47,726 INFO L158 Benchmark]: Toolchain (without parser) took 1379.08ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 46.0MB in the end (delta: 48.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-24 01:22:47,726 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:22:47,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.35ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 82.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:22:47,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.10ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:22:47,727 INFO L158 Benchmark]: Boogie Preprocessor took 39.20ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:22:47,727 INFO L158 Benchmark]: RCFGBuilder took 400.70ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:22:47,728 INFO L158 Benchmark]: TraceAbstraction took 533.21ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 46.3MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 01:22:47,728 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 46.0MB in the end (delta: 273.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:22:47,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.35ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 82.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.10ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.20ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 400.70ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 533.21ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 46.3MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 117.4MB. Free memory was 46.3MB in the beginning and 46.0MB in the end (delta: 273.6kB). 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: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 85. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:22:47,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fcc04ce578d0111a6c71cbc4293b8197f20da95a3a547b20b6c6dac6e888dc6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:22:50,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:22:50,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:22:50,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:22:50,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:22:50,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:22:50,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:22:50,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:22:50,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:22:50,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:22:50,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:22:50,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:22:50,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:22:50,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:22:50,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:22:50,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:22:50,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:22:50,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:22:50,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:50,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:50,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:50,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:22:50,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:22:50,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:22:50,732 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_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 0fcc04ce578d0111a6c71cbc4293b8197f20da95a3a547b20b6c6dac6e888dc6 [2024-11-24 01:22:51,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:22:51,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:22:51,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:22:51,115 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:22:51,115 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:22:51,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/gcd_3+newton_1_1.i [2024-11-24 01:22:54,119 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/51c08a0f7/d2d2eda149254a47b6deff53dc900262/FLAG78654acbd [2024-11-24 01:22:54,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:22:54,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i [2024-11-24 01:22:54,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/51c08a0f7/d2d2eda149254a47b6deff53dc900262/FLAG78654acbd [2024-11-24 01:22:54,471 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/data/51c08a0f7/d2d2eda149254a47b6deff53dc900262 [2024-11-24 01:22:54,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:22:54,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:22:54,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:54,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:22:54,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:22:54,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b055979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54, skipping insertion in model container [2024-11-24 01:22:54,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:22:54,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[1226,1239] [2024-11-24 01:22:54,745 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[2820,2833] [2024-11-24 01:22:54,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:54,766 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:22:54,788 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[1226,1239] [2024-11-24 01:22:54,814 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/sv-benchmarks/c/combinations/gcd_3+newton_1_1.i[2820,2833] [2024-11-24 01:22:54,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:54,844 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:22:54,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54 WrapperNode [2024-11-24 01:22:54,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:54,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:54,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:22:54,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:22:54,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,907 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2024-11-24 01:22:54,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:54,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:22:54,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:22:54,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:22:54,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,924 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,943 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-24 01:22:54,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:22:54,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:22:54,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:22:54,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:22:54,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (1/1) ... [2024-11-24 01:22:54,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:55,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:55,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:22:55,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:22:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:22:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:22:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 01:22:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:22:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:22:55,148 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:22:55,150 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:23:05,442 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-24 01:23:05,442 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:23:05,454 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:23:05,455 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:23:05,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:05 BoogieIcfgContainer [2024-11-24 01:23:05,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:23:05,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:23:05,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:23:05,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:23:05,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:22:54" (1/3) ... [2024-11-24 01:23:05,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d9d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:05, skipping insertion in model container [2024-11-24 01:23:05,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:54" (2/3) ... [2024-11-24 01:23:05,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d9d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:23:05, skipping insertion in model container [2024-11-24 01:23:05,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:23:05" (3/3) ... [2024-11-24 01:23:05,467 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_1.i [2024-11-24 01:23:05,482 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:23:05,495 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_1.i that has 1 procedures, 28 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-24 01:23:05,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:23:05,565 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;@3c24c83c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:23:05,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 01:23:05,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 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) [2024-11-24 01:23:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:23:05,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:05,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:05,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:05,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:05,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1364836250, now seen corresponding path program 1 times [2024-11-24 01:23:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:23:05,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601704225] [2024-11-24 01:23:05,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:05,594 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 [2024-11-24 01:23:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:23:05,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:23:05,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:23:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:06,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:23:06,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:23:06,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:06,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:23:06,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601704225] [2024-11-24 01:23:06,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601704225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:06,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:06,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:23:06,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742181722] [2024-11-24 01:23:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:06,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:23:06,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:23:06,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:23:06,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:06,803 INFO L87 Difference]: Start difference. First operand has 28 states, 25 states have (on average 1.44) internal successors, (36), 27 states have internal predecessors, (36), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-24 01:23:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:06,815 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-24 01:23:06,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:23:06,817 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), 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 9 [2024-11-24 01:23:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:06,822 INFO L225 Difference]: With dead ends: 48 [2024-11-24 01:23:06,822 INFO L226 Difference]: Without dead ends: 20 [2024-11-24 01:23:06,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:23:06,826 INFO L435 NwaCegarLoop]: 32 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, 32 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 [2024-11-24 01:23:06,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:23:06,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-24 01:23:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-24 01:23:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-24 01:23:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-24 01:23:06,852 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2024-11-24 01:23:06,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:06,853 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-24 01:23:06,853 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), 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) [2024-11-24 01:23:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-24 01:23:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:23:06,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:06,853 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:06,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:23:07,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:23:07,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:07,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1422094552, now seen corresponding path program 1 times [2024-11-24 01:23:07,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:23:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10263133] [2024-11-24 01:23:07,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:07,056 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 [2024-11-24 01:23:07,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:23:07,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:23:07,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d798f1c4-61f2-4771-a2e3-a984d27514ca/bin/uautomizer-verify-LYvppIcaGC/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