./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB --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 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:16:25,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:16:25,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:16:25,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:16:25,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:16:25,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:16:25,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:16:25,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:16:25,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:16:25,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:16:25,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:16:25,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:16:25,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:16:25,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:16:25,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:16:25,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:25,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:25,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:25,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:16:25,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:16:25,860 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:16:25,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:16:25,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:16:25,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:16:25,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:16:25,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:16:25,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:16:25,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:16:25,862 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_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 [2024-11-27 23:16:26,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:16:26,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:16:26,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:16:26,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:16:26,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:16:26,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2024-11-27 23:16:29,502 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/data/e4fa43571/e1f9dee1724f47cca5dea345d5a89f79/FLAG87f20e583 [2024-11-27 23:16:29,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:16:29,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/sv-benchmarks/c/loop-lit/jm2006_variant.i [2024-11-27 23:16:29,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/data/e4fa43571/e1f9dee1724f47cca5dea345d5a89f79/FLAG87f20e583 [2024-11-27 23:16:29,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/data/e4fa43571/e1f9dee1724f47cca5dea345d5a89f79 [2024-11-27 23:16:29,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:16:29,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:16:29,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:29,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:16:29,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:16:29,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:29" (1/1) ... [2024-11-27 23:16:29,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17021b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:29, skipping insertion in model container [2024-11-27 23:16:29,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:29" (1/1) ... [2024-11-27 23:16:29,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:16:30,053 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_a0673b70-2c44-4e43-9a0e-a506fa1412b1/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2024-11-27 23:16:30,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:30,083 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:16:30,097 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_a0673b70-2c44-4e43-9a0e-a506fa1412b1/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] [2024-11-27 23:16:30,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:30,119 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:16:30,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30 WrapperNode [2024-11-27 23:16:30,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:30,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:30,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:16:30,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:16:30,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,156 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-27 23:16:30,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:30,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:16:30,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:16:30,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:16:30,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,178 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:16:30,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,184 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:16:30,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:16:30,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:16:30,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:16:30,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (1/1) ... [2024-11-27 23:16:30,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:30,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:16:30,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:16:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:16:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:16:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:16:30,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:16:30,322 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:16:30,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:16:30,486 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-27 23:16:30,487 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:16:30,497 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:16:30,498 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:16:30,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:30 BoogieIcfgContainer [2024-11-27 23:16:30,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:16:30,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:16:30,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:16:30,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:16:30,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:16:29" (1/3) ... [2024-11-27 23:16:30,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30eae3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:30, skipping insertion in model container [2024-11-27 23:16:30,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:30" (2/3) ... [2024-11-27 23:16:30,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30eae3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:30, skipping insertion in model container [2024-11-27 23:16:30,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:30" (3/3) ... [2024-11-27 23:16:30,512 INFO L128 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2024-11-27 23:16:30,531 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:16:30,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG jm2006_variant.i that has 1 procedures, 15 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:16:30,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:16:30,619 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;@43e2f654, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:16:30,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:16:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) [2024-11-27 23:16:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 23:16:30,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:30,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:30,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:30,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash 179662930, now seen corresponding path program 1 times [2024-11-27 23:16:30,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:30,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586252079] [2024-11-27 23:16:30,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:31,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586252079] [2024-11-27 23:16:31,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586252079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:31,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:31,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:16:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854583606] [2024-11-27 23:16:31,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:31,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:16:31,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:31,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:16:31,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:16:31,378 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2024-11-27 23:16:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:31,489 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2024-11-27 23:16:31,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:16:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2024-11-27 23:16:31,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:31,517 INFO L225 Difference]: With dead ends: 28 [2024-11-27 23:16:31,517 INFO L226 Difference]: Without dead ends: 12 [2024-11-27 23:16:31,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:16:31,527 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:31,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:16:31,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-27 23:16:31,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-11-27 23:16:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2024-11-27 23:16:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-27 23:16:31,565 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2024-11-27 23:16:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:31,565 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-27 23:16:31,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2024-11-27 23:16:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-27 23:16:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 23:16:31,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:31,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:31,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:16:31,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:31,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 794252950, now seen corresponding path program 1 times [2024-11-27 23:16:31,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:31,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294761926] [2024-11-27 23:16:31,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:31,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294761926] [2024-11-27 23:16:31,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294761926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:16:31,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493479953] [2024-11-27 23:16:31,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:31,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:16:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:31,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:16:31,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:16:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:32,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:16:32,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:16:32,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:32,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:16:32,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:32,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493479953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:16:32,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:16:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-27 23:16:32,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143672597] [2024-11-27 23:16:32,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:16:32,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:16:32,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:32,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:16:32,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:16:32,431 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-27 23:16:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:32,567 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2024-11-27 23:16:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:16:32,568 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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 10 [2024-11-27 23:16:32,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:32,568 INFO L225 Difference]: With dead ends: 23 [2024-11-27 23:16:32,568 INFO L226 Difference]: Without dead ends: 17 [2024-11-27 23:16:32,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:16:32,570 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:32,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 32 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:16:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-27 23:16:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-27 23:16:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2024-11-27 23:16:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-27 23:16:32,576 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2024-11-27 23:16:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:32,576 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-27 23:16:32,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-27 23:16:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-27 23:16:32,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 23:16:32,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:32,577 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:32,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:16:32,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-27 23:16:32,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:32,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:32,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1705311390, now seen corresponding path program 2 times [2024-11-27 23:16:32,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:32,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937653097] [2024-11-27 23:16:32,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:16:32,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:32,805 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:16:32,805 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 23:16:33,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:33,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937653097] [2024-11-27 23:16:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937653097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:16:33,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488855799] [2024-11-27 23:16:33,249 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:16:33,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:16:33,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:33,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:16:33,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:16:33,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:16:33,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:33,316 WARN L254 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:16:33,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:16:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:33,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:16:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:34,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488855799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:16:34,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:16:34,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 21 [2024-11-27 23:16:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745792763] [2024-11-27 23:16:34,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:16:34,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:16:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:34,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:16:34,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:16:34,008 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 21 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) [2024-11-27 23:16:34,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:34,155 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-27 23:16:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:16:34,155 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 21 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) Word has length 16 [2024-11-27 23:16:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:34,156 INFO L225 Difference]: With dead ends: 21 [2024-11-27 23:16:34,156 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:16:34,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:16:34,157 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:34,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:16:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:16:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:16:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:16:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:16:34,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-27 23:16:34,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:34,160 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:16:34,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 21 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) [2024-11-27 23:16:34,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:16:34,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:16:34,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:16:34,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:16:34,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:16:34,367 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-27 23:16:34,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:16:34,431 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:16:34,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:16:34 BoogieIcfgContainer [2024-11-27 23:16:34,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:16:34,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:16:34,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:16:34,448 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:16:34,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:30" (3/4) ... [2024-11-27 23:16:34,452 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:16:34,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-27 23:16:34,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 23:16:34,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:16:34,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:16:34,559 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:16:34,560 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:16:34,560 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:16:34,561 INFO L158 Benchmark]: Toolchain (without parser) took 4729.39ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.4MB in the beginning and 290.4MB in the end (delta: -196.1MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-11-27 23:16:34,561 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:34,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.66ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 83.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:16:34,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.74ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:34,563 INFO L158 Benchmark]: Boogie Preprocessor took 38.01ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:34,568 INFO L158 Benchmark]: RCFGBuilder took 303.04ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.5MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:16:34,568 INFO L158 Benchmark]: TraceAbstraction took 3945.89ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.0MB in the beginning and 295.0MB in the end (delta: -225.0MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-27 23:16:34,569 INFO L158 Benchmark]: Witness Printer took 112.46ms. Allocated memory is still 352.3MB. Free memory was 295.0MB in the beginning and 290.4MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:16:34,571 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 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.66ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 83.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.74ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.01ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.04ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.5MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3945.89ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.0MB in the beginning and 295.0MB in the end (delta: -225.0MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 112.46ms. Allocated memory is still 352.3MB. Free memory was 295.0MB in the beginning and 290.4MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 22 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, InterpolantAutomatonStates: 27, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 698 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 6/51 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((long long) i + y) + z) == ((long long) j + x)) RESULT: Ultimate proved your program to be correct! [2024-11-27 23:16:34,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0673b70-2c44-4e43-9a0e-a506fa1412b1/bin/uautomizer-verify-aQ6SnzHsRB/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 Writing output log to file Ultimate.log Result: TRUE