./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c --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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/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 099a6c07b0f7802c24b5daaf1ad5a1209a4337f326a0c4ba8ea2f0dea56171ec --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:33:32,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:33:32,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:33:32,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:33:32,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:33:33,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:33:33,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:33:33,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:33:33,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:33:33,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:33:33,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:33:33,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:33:33,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:33:33,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:33:33,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:33:33,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:33:33,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:33:33,027 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:33:33,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:33:33,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:33:33,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:33:33,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:33:33,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:33:33,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:33:33,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:33:33,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:33:33,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:33:33,029 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:33:33,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:33:33,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:33:33,031 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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/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 -> 099a6c07b0f7802c24b5daaf1ad5a1209a4337f326a0c4ba8ea2f0dea56171ec [2024-11-28 02:33:33,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:33:33,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:33:33,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:33:33,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:33:33,391 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:33:33,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c [2024-11-28 02:33:36,750 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/data/2910f2add/f1494594809e44d59e9f49a43a90ee9e/FLAG5db0216c0 [2024-11-28 02:33:37,077 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:33:37,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c [2024-11-28 02:33:37,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/data/2910f2add/f1494594809e44d59e9f49a43a90ee9e/FLAG5db0216c0 [2024-11-28 02:33:37,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/data/2910f2add/f1494594809e44d59e9f49a43a90ee9e [2024-11-28 02:33:37,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:33:37,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:33:37,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:33:37,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:33:37,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:33:37,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f97d557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37, skipping insertion in model container [2024-11-28 02:33:37,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:33:37,351 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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c[458,471] [2024-11-28 02:33:37,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:33:37,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:33:37,416 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_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound5.c[458,471] [2024-11-28 02:33:37,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:33:37,442 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:33:37,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37 WrapperNode [2024-11-28 02:33:37,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:33:37,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:33:37,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:33:37,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:33:37,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,480 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-11-28 02:33:37,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:33:37,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:33:37,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:33:37,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:33:37,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,507 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]. [2024-11-28 02:33:37,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:33:37,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:33:37,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:33:37,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:33:37,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (1/1) ... [2024-11-28 02:33:37,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:33:37,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:37,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:33:37,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:33:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:33:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:33:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:33:37,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:33:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:33:37,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:33:37,686 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:33:37,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:33:37,868 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-28 02:33:37,868 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:33:37,881 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:33:37,881 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:33:37,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:37 BoogieIcfgContainer [2024-11-28 02:33:37,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:33:37,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:33:37,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:33:37,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:33:37,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:33:37" (1/3) ... [2024-11-28 02:33:37,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e17fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:37, skipping insertion in model container [2024-11-28 02:33:37,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:33:37" (2/3) ... [2024-11-28 02:33:37,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e17fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:33:37, skipping insertion in model container [2024-11-28 02:33:37,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:37" (3/3) ... [2024-11-28 02:33:37,902 INFO L128 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound5.c [2024-11-28 02:33:37,929 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:33:37,933 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_unwindbound5.c that has 2 procedures, 20 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:33:38,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:33:38,041 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;@3ebe8c92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:33:38,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:33:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:33:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:33:38,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:38,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:38,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:38,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash -579246775, now seen corresponding path program 1 times [2024-11-28 02:33:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:38,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597801768] [2024-11-28 02:33:38,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:38,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:38,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597801768] [2024-11-28 02:33:38,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597801768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:33:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769164357] [2024-11-28 02:33:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:38,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:33:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:38,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:33:38,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:33:38,276 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:38,296 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2024-11-28 02:33:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:33:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 02:33:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:38,306 INFO L225 Difference]: With dead ends: 37 [2024-11-28 02:33:38,306 INFO L226 Difference]: Without dead ends: 16 [2024-11-28 02:33:38,309 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 [2024-11-28 02:33:38,313 INFO L435 NwaCegarLoop]: 23 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, 23 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 [2024-11-28 02:33:38,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-28 02:33:38,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-28 02:33:38,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:33:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-11-28 02:33:38,347 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2024-11-28 02:33:38,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:38,347 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-28 02:33:38,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-28 02:33:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:33:38,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:38,348 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:38,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:33:38,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:38,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:38,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2016163457, now seen corresponding path program 1 times [2024-11-28 02:33:38,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:38,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161695667] [2024-11-28 02:33:38,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:38,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:33:38,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563779516] [2024-11-28 02:33:38,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:38,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:38,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:38,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:33:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:38,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:33:38,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:38,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:33:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161695667] [2024-11-28 02:33:38,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:33:38,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563779516] [2024-11-28 02:33:38,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563779516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:33:38,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:33:38,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:33:38,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116171311] [2024-11-28 02:33:38,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:38,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:33:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:38,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:33:38,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:33:38,595 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:38,667 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-11-28 02:33:38,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:33:38,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:33:38,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:38,669 INFO L225 Difference]: With dead ends: 28 [2024-11-28 02:33:38,670 INFO L226 Difference]: Without dead ends: 24 [2024-11-28 02:33:38,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:33:38,671 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:38,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:33:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-28 02:33:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-28 02:33:38,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:33:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-28 02:33:38,680 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2024-11-28 02:33:38,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:38,680 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-28 02:33:38,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:33:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-28 02:33:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 02:33:38,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:38,681 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:38,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:33:38,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:38,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:38,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1286351555, now seen corresponding path program 1 times [2024-11-28 02:33:38,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:38,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238109166] [2024-11-28 02:33:38,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:38,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:33:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286141468] [2024-11-28 02:33:38,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:38,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:38,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:38,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:38,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:33:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:39,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:33:39,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:33:39,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:33:39,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:39,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238109166] [2024-11-28 02:33:39,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:33:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286141468] [2024-11-28 02:33:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286141468] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:39,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:33:39,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2024-11-28 02:33:39,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469881401] [2024-11-28 02:33:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:33:39,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:33:39,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:39,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:33:39,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:33:39,317 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:33:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:39,400 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-11-28 02:33:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:33:39,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-28 02:33:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:39,402 INFO L225 Difference]: With dead ends: 30 [2024-11-28 02:33:39,403 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 02:33:39,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:33:39,405 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:39,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 47 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 02:33:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 02:33:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:33:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-28 02:33:39,426 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 18 [2024-11-28 02:33:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:39,427 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-28 02:33:39,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:33:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-28 02:33:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 02:33:39,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:39,428 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:39,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:33:39,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:39,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:39,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash -603194079, now seen corresponding path program 1 times [2024-11-28 02:33:39,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:39,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268106877] [2024-11-28 02:33:39,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:39,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:33:39,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:39,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268106877] [2024-11-28 02:33:39,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268106877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:39,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341325713] [2024-11-28 02:33:39,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:39,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:39,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:39,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:39,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:33:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:39,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:33:39,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:33:39,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:33:40,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341325713] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:40,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:40,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 8 [2024-11-28 02:33:40,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333122081] [2024-11-28 02:33:40,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:40,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:33:40,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:40,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:33:40,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:33:40,017 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:33:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:40,160 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2024-11-28 02:33:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:33:40,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 23 [2024-11-28 02:33:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:40,164 INFO L225 Difference]: With dead ends: 66 [2024-11-28 02:33:40,164 INFO L226 Difference]: Without dead ends: 56 [2024-11-28 02:33:40,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:33:40,165 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:40,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-28 02:33:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2024-11-28 02:33:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.121212121212121) internal successors, (37), 35 states have internal predecessors, (37), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 02:33:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2024-11-28 02:33:40,200 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 23 [2024-11-28 02:33:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:40,201 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2024-11-28 02:33:40,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:33:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2024-11-28 02:33:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 02:33:40,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:40,203 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:40,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:40,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:40,404 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:40,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1681809180, now seen corresponding path program 1 times [2024-11-28 02:33:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:40,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459967203] [2024-11-28 02:33:40,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:40,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:33:40,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660030608] [2024-11-28 02:33:40,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:33:40,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:40,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:40,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:40,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:33:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:33:40,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:33:40,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:33:40,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:33:40,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:40,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459967203] [2024-11-28 02:33:40,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:33:40,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660030608] [2024-11-28 02:33:40,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660030608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:40,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:33:40,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 02:33:40,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584264650] [2024-11-28 02:33:40,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:40,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:33:40,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:40,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:33:40,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:33:40,904 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 12 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:33:41,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:41,111 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2024-11-28 02:33:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:33:41,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2024-11-28 02:33:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:41,113 INFO L225 Difference]: With dead ends: 55 [2024-11-28 02:33:41,115 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 02:33:41,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:33:41,116 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 139 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 [2024-11-28 02:33:41,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 139 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 02:33:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-28 02:33:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 34 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:33:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-11-28 02:33:41,148 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 29 [2024-11-28 02:33:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:41,149 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-11-28 02:33:41,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:33:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-11-28 02:33:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 02:33:41,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:41,152 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:41,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:33:41,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:41,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:41,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2096328917, now seen corresponding path program 2 times [2024-11-28 02:33:41,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:41,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411379942] [2024-11-28 02:33:41,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:41,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:41,412 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:41,412 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 02:33:41,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:41,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411379942] [2024-11-28 02:33:41,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411379942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:33:41,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158897425] [2024-11-28 02:33:41,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:41,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:41,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:33:41,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:41,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:41,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:33:41,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:33:41,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 02:33:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158897425] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:42,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:33:42,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 8 [2024-11-28 02:33:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617424154] [2024-11-28 02:33:42,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:42,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:33:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:42,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:33:42,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:33:42,041 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:33:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:42,166 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2024-11-28 02:33:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:33:42,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2024-11-28 02:33:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:42,168 INFO L225 Difference]: With dead ends: 62 [2024-11-28 02:33:42,168 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 02:33:42,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:33:42,169 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:42,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:33:42,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 02:33:42,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-28 02:33:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:33:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-28 02:33:42,190 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 47 [2024-11-28 02:33:42,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:42,190 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-28 02:33:42,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:33:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-28 02:33:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 02:33:42,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:42,192 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:42,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:42,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 02:33:42,397 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:42,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:42,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1374191000, now seen corresponding path program 2 times [2024-11-28 02:33:42,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:42,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745516672] [2024-11-28 02:33:42,397 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:42,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:42,432 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:42,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:33:42,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476799046] [2024-11-28 02:33:42,434 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:33:42,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:42,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:42,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:42,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:33:42,512 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:33:42,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:33:42,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 02:33:42,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:33:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 40 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 02:33:42,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:33:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 40 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 02:33:43,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:33:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745516672] [2024-11-28 02:33:43,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:33:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476799046] [2024-11-28 02:33:43,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476799046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:33:43,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:33:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-28 02:33:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036002291] [2024-11-28 02:33:43,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:33:43,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:33:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:33:43,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:33:43,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:33:43,337 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 20 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:33:44,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:44,066 INFO L93 Difference]: Finished difference Result 86 states and 107 transitions. [2024-11-28 02:33:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 02:33:44,067 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 53 [2024-11-28 02:33:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:44,069 INFO L225 Difference]: With dead ends: 86 [2024-11-28 02:33:44,069 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 02:33:44,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=703, Unknown=0, NotChecked=0, Total=870 [2024-11-28 02:33:44,070 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 38 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:44,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 314 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:33:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 02:33:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2024-11-28 02:33:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 52 states have internal predecessors, (58), 12 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 02:33:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2024-11-28 02:33:44,134 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 53 [2024-11-28 02:33:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:44,134 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2024-11-28 02:33:44,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 02:33:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2024-11-28 02:33:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 02:33:44,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:44,136 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:33:44,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:44,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:44,343 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:33:44,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2040182255, now seen corresponding path program 3 times [2024-11-28 02:33:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:33:44,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349683297] [2024-11-28 02:33:44,343 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:33:44,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:33:44,411 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 02:33:44,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:33:44,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570346883] [2024-11-28 02:33:44,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:33:44,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:44,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:44,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:33:44,508 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 02:33:44,508 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 02:33:44,508 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:33:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:33:44,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:33:44,561 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:33:44,562 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:33:44,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:33:44,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:44,767 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-28 02:33:44,797 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:33:44,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:33:44 BoogieIcfgContainer [2024-11-28 02:33:44,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:33:44,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:33:44,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:33:44,802 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:33:44,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:33:37" (3/4) ... [2024-11-28 02:33:44,804 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:33:44,861 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 35. [2024-11-28 02:33:44,945 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:33:44,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:33:44,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:33:44,947 INFO L158 Benchmark]: Toolchain (without parser) took 7834.10ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 65.1MB in the end (delta: 27.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-28 02:33:44,947 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:33:44,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.17ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.5MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:33:44,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:33:44,948 INFO L158 Benchmark]: Boogie Preprocessor took 38.33ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:33:44,948 INFO L158 Benchmark]: RCFGBuilder took 361.70ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 68.5MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:33:44,949 INFO L158 Benchmark]: TraceAbstraction took 6911.83ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 71.4MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:33:44,949 INFO L158 Benchmark]: Witness Printer took 144.26ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 65.1MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:33:44,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.17ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.5MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.33ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 361.70ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 68.5MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6911.83ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 71.4MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 144.26ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 65.1MB in the end (delta: 6.2MB). 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 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; VAL [counter=0] [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L22] CALL assume_abort_if_not(k <= 256) [L7] COND FALSE !(!cond) VAL [counter=0] [L22] RET assume_abort_if_not(k <= 256) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [c=0, counter=0, k=7, x=0, y=0] [L28] EXPR counter++ VAL [c=0, counter=1, k=7, x=0, y=0] [L28] COND TRUE counter++<5 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=0, counter=1, k=7, x=0, y=0] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [c=1, counter=1, k=7, x=1, y=1] [L28] EXPR counter++ VAL [c=1, counter=2, k=7, x=1, y=1] [L28] COND TRUE counter++<5 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=1, counter=2, k=7, x=1, y=1] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [c=2, counter=2, k=7, x=33, y=2] [L28] EXPR counter++ VAL [c=2, counter=3, k=7, x=33, y=2] [L28] COND TRUE counter++<5 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=3] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=3] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=2, counter=3, k=7, x=33, y=2] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [c=3, counter=3, k=7, x=276, y=3] [L28] EXPR counter++ VAL [c=3, counter=4, k=7, x=276, y=3] [L28] COND TRUE counter++<5 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=4] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=4] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=3, counter=4, k=7, x=276, y=3] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [c=4, counter=4, k=7, x=1300, y=4] [L28] EXPR counter++ VAL [c=4, counter=5, k=7, x=1300, y=4] [L28] COND TRUE counter++<5 [L29] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=5] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=5] [L29] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=4, counter=5, k=7, x=1300, y=4] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y * y + x VAL [c=5, counter=5, k=7, x=4425, y=5] [L28] EXPR counter++ VAL [c=5, counter=6, k=7, x=4425, y=5] [L28] COND FALSE !(counter++<5) [L39] CALL __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [\old(cond)=1, counter=6] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=6] [L39] RET __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0) VAL [c=5, counter=6, k=7, x=4425, y=5] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, counter=6] [L10] COND TRUE !(cond) VAL [\old(cond)=0, counter=6] [L12] reach_error() VAL [\old(cond)=0, counter=6] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 8, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 577 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 141 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 376 GetRequests, 298 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=7, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 479 NumberOfCodeBlocks, 479 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1731 SizeOfPredicates, 10 NumberOfNonLiveVariables, 587 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 337/554 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 proved your program to be incorrect! [2024-11-28 02:33:44,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ce9e266-f04f-4b42-9f4b-f9619500c8ec/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE