./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/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 7ef6da603a3edb1cac2cf6a6bd5a25b491fd87e137c5adc05f0da5b0f7a089a4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:52:20,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:52:20,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:52:20,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:52:20,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:52:20,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:52:20,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:52:20,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:52:20,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:52:20,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:52:20,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:52:20,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:52:20,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:52:20,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:52:20,709 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:52:20,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:52:20,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:52:20,711 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:20,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:20,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:20,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:52:20,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:20,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:20,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:20,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:20,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:52:20,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:52:20,715 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:52:20,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:52:20,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:52:20,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:52:20,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:52:20,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:52:20,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:52:20,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:52:20,717 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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/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 -> 7ef6da603a3edb1cac2cf6a6bd5a25b491fd87e137c5adc05f0da5b0f7a089a4 [2024-11-28 04:52:21,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:52:21,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:52:21,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:52:21,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:52:21,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:52:21,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.c [2024-11-28 04:52:25,283 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/data/01ab5468c/1cf499a3efd34a83ba3c9a5379d0ea4e/FLAG41f4deec7 [2024-11-28 04:52:25,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:52:25,921 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.c [2024-11-28 04:52:25,947 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/data/01ab5468c/1cf499a3efd34a83ba3c9a5379d0ea4e/FLAG41f4deec7 [2024-11-28 04:52:25,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/data/01ab5468c/1cf499a3efd34a83ba3c9a5379d0ea4e [2024-11-28 04:52:25,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:52:25,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:52:25,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:25,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:52:25,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:52:25,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:25" (1/1) ... [2024-11-28 04:52:25,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2708d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:25, skipping insertion in model container [2024-11-28 04:52:25,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:25" (1/1) ... [2024-11-28 04:52:26,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:52:26,825 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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.c[42814,42827] [2024-11-28 04:52:26,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:26,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:52:27,106 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_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/sv-benchmarks/c/xcsp/aim-200-2-0-sat-4.c[42814,42827] [2024-11-28 04:52:27,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:27,165 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:52:27,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27 WrapperNode [2024-11-28 04:52:27,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:27,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:27,169 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:52:27,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:52:27,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:27,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,051 INFO L138 Inliner]: procedures = 13, calls = 796, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8253 [2024-11-28 04:52:28,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:28,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:52:28,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:52:28,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:52:28,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,373 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 04:52:28,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:28,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:29,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:52:29,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:52:29,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:52:29,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:52:29,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (1/1) ... [2024-11-28 04:52:29,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:29,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:29,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:52:29,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:52:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:52:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:52:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:52:29,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:52:29,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 04:52:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 04:52:29,816 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:52:29,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:52:52,606 INFO L? ?]: Removed 1856 outVars from TransFormulas that were not future-live. [2024-11-28 04:52:52,607 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:52:52,705 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:52:52,705 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:52:52,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:52:52 BoogieIcfgContainer [2024-11-28 04:52:52,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:52:52,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:52:52,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:52:52,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:52:52,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:52:25" (1/3) ... [2024-11-28 04:52:52,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398e194c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:52:52, skipping insertion in model container [2024-11-28 04:52:52,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:27" (2/3) ... [2024-11-28 04:52:52,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398e194c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:52:52, skipping insertion in model container [2024-11-28 04:52:52,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:52:52" (3/3) ... [2024-11-28 04:52:52,720 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-sat-4.c [2024-11-28 04:52:52,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:52:52,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-sat-4.c that has 2 procedures, 3807 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:52:52,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:52:52,994 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;@6594d58a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:52:52,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:52:53,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 3807 states, 3015 states have (on average 1.5353233830845772) internal successors, (4629), 3016 states have internal predecessors, (4629), 789 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 789 states have call predecessors, (789), 789 states have call successors, (789) [2024-11-28 04:52:53,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5344 [2024-11-28 04:52:53,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:53,627 INFO L218 NwaCegarLoop]: trace histogram [789, 789, 789, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:53,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:52:53,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1389746591, now seen corresponding path program 1 times [2024-11-28 04:52:53,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:52:53,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257423590] [2024-11-28 04:52:53,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:53,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:52:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 0 proven. 1576 refuted. 0 times theorem prover too weak. 1241888 trivial. 0 not checked. [2024-11-28 04:53:02,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:02,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257423590] [2024-11-28 04:53:02,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257423590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:02,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742782252] [2024-11-28 04:53:02,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:02,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:02,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:02,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:02,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:53:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:05,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 10334 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:53:05,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 1241888 trivial. 0 not checked. [2024-11-28 04:53:06,404 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:06,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742782252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:06,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:53:06,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:53:06,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646433381] [2024-11-28 04:53:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:06,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:53:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:06,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:53:06,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:53:06,493 INFO L87 Difference]: Start difference. First operand has 3807 states, 3015 states have (on average 1.5353233830845772) internal successors, (4629), 3016 states have internal predecessors, (4629), 789 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 789 states have call predecessors, (789), 789 states have call successors, (789) Second operand has 2 states, 2 states have (on average 701.5) internal successors, (1403), 2 states have internal predecessors, (1403), 2 states have call successors, (789), 2 states have call predecessors, (789), 1 states have return successors, (789), 1 states have call predecessors, (789), 2 states have call successors, (789) [2024-11-28 04:53:06,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:06,990 INFO L93 Difference]: Finished difference Result 7608 states and 13197 transitions. [2024-11-28 04:53:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:53:06,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 701.5) internal successors, (1403), 2 states have internal predecessors, (1403), 2 states have call successors, (789), 2 states have call predecessors, (789), 1 states have return successors, (789), 1 states have call predecessors, (789), 2 states have call successors, (789) Word has length 5343 [2024-11-28 04:53:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:07,059 INFO L225 Difference]: With dead ends: 7608 [2024-11-28 04:53:07,060 INFO L226 Difference]: Without dead ends: 3804 [2024-11-28 04:53:07,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5344 GetRequests, 5344 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 04:53:07,096 INFO L435 NwaCegarLoop]: 6203 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, 6203 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:07,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:07,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2024-11-28 04:53:08,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3804. [2024-11-28 04:53:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3013 states have (on average 1.5350149352804514) internal successors, (4625), 3013 states have internal predecessors, (4625), 789 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 789 states have call predecessors, (789), 789 states have call successors, (789) [2024-11-28 04:53:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 6203 transitions. [2024-11-28 04:53:08,271 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 6203 transitions. Word has length 5343 [2024-11-28 04:53:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:08,275 INFO L471 AbstractCegarLoop]: Abstraction has 3804 states and 6203 transitions. [2024-11-28 04:53:08,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 701.5) internal successors, (1403), 2 states have internal predecessors, (1403), 2 states have call successors, (789), 2 states have call predecessors, (789), 1 states have return successors, (789), 1 states have call predecessors, (789), 2 states have call successors, (789) [2024-11-28 04:53:08,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 6203 transitions. [2024-11-28 04:53:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5344 [2024-11-28 04:53:08,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:08,525 INFO L218 NwaCegarLoop]: trace histogram [789, 789, 789, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:08,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:08,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:08,727 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:08,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1701341943, now seen corresponding path program 1 times [2024-11-28 04:53:08,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:08,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888444989] [2024-11-28 04:53:08,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:08,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 4584 proven. 14160 refuted. 0 times theorem prover too weak. 1224720 trivial. 0 not checked. [2024-11-28 04:54:47,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:47,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888444989] [2024-11-28 04:54:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888444989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247484434] [2024-11-28 04:54:47,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:47,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:47,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:47,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:54:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:50,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 10334 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 04:54:50,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 25592 proven. 19464 refuted. 0 times theorem prover too weak. 1198408 trivial. 0 not checked. [2024-11-28 04:55:45,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 3696 proven. 19674 refuted. 0 times theorem prover too weak. 1220094 trivial. 0 not checked. [2024-11-28 04:56:52,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247484434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:52,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:52,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 20] total 47 [2024-11-28 04:56:52,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221838493] [2024-11-28 04:56:52,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:52,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-28 04:56:52,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:52,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-28 04:56:52,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1866, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:56:52,558 INFO L87 Difference]: Start difference. First operand 3804 states and 6203 transitions. Second operand has 47 states, 33 states have (on average 123.15151515151516) internal successors, (4064), 34 states have internal predecessors, (4064), 43 states have call successors, (2248), 2 states have call predecessors, (2248), 3 states have return successors, (2250), 42 states have call predecessors, (2250), 43 states have call successors, (2250) [2024-11-28 04:58:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:39,740 INFO L93 Difference]: Finished difference Result 80530 states and 131006 transitions. [2024-11-28 04:58:39,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2024-11-28 04:58:39,745 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 33 states have (on average 123.15151515151516) internal successors, (4064), 34 states have internal predecessors, (4064), 43 states have call successors, (2248), 2 states have call predecessors, (2248), 3 states have return successors, (2250), 42 states have call predecessors, (2250), 43 states have call successors, (2250) Word has length 5343 [2024-11-28 04:58:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:40,061 INFO L225 Difference]: With dead ends: 80530 [2024-11-28 04:58:40,061 INFO L226 Difference]: Without dead ends: 78248 [2024-11-28 04:58:40,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10893 GetRequests, 10673 SyntacticMatches, 4 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15990 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=11951, Invalid=35355, Unknown=0, NotChecked=0, Total=47306 [2024-11-28 04:58:40,107 INFO L435 NwaCegarLoop]: 24434 mSDtfsCounter, 208783 mSDsluCounter, 233146 mSDsCounter, 0 mSdLazyCounter, 34497 mSolverCounterSat, 15976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208816 SdHoareTripleChecker+Valid, 257580 SdHoareTripleChecker+Invalid, 50473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 15976 IncrementalHoareTripleChecker+Valid, 34497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:40,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208816 Valid, 257580 Invalid, 50473 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [15976 Valid, 34497 Invalid, 0 Unknown, 0 Unchecked, 54.8s Time] [2024-11-28 04:58:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78248 states. [2024-11-28 04:58:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78248 to 46350. [2024-11-28 04:58:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46350 states, 40218 states have (on average 1.5681784275697448) internal successors, (63069), 40218 states have internal predecessors, (63069), 6130 states have call successors, (6130), 1 states have call predecessors, (6130), 1 states have return successors, (6130), 6130 states have call predecessors, (6130), 6130 states have call successors, (6130) [2024-11-28 04:58:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46350 states to 46350 states and 75329 transitions. [2024-11-28 04:58:51,564 INFO L78 Accepts]: Start accepts. Automaton has 46350 states and 75329 transitions. Word has length 5343 [2024-11-28 04:58:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:51,587 INFO L471 AbstractCegarLoop]: Abstraction has 46350 states and 75329 transitions. [2024-11-28 04:58:51,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 33 states have (on average 123.15151515151516) internal successors, (4064), 34 states have internal predecessors, (4064), 43 states have call successors, (2248), 2 states have call predecessors, (2248), 3 states have return successors, (2250), 42 states have call predecessors, (2250), 43 states have call successors, (2250) [2024-11-28 04:58:51,596 INFO L276 IsEmpty]: Start isEmpty. Operand 46350 states and 75329 transitions. [2024-11-28 04:58:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5346 [2024-11-28 04:58:52,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:52,185 INFO L218 NwaCegarLoop]: trace histogram [789, 789, 789, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:52,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:58:52,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:52,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:52,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:52,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1155960981, now seen corresponding path program 1 times [2024-11-28 04:58:52,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:52,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392858856] [2024-11-28 04:58:52,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:52,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1243464 trivial. 0 not checked. [2024-11-28 04:59:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:11,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392858856] [2024-11-28 04:59:11,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392858856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:11,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:11,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:11,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621565973] [2024-11-28 04:59:11,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:11,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:11,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:11,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:11,447 INFO L87 Difference]: Start difference. First operand 46350 states and 75329 transitions. Second operand has 3 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 3 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 3 states have call predecessors, (789), 3 states have call successors, (789) [2024-11-28 04:59:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:14,086 INFO L93 Difference]: Finished difference Result 110542 states and 179638 transitions. [2024-11-28 04:59:14,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 3 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 3 states have call predecessors, (789), 3 states have call successors, (789) Word has length 5345 [2024-11-28 04:59:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:14,435 INFO L225 Difference]: With dead ends: 110542 [2024-11-28 04:59:14,435 INFO L226 Difference]: Without dead ends: 66150 [2024-11-28 04:59:14,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:14,593 INFO L435 NwaCegarLoop]: 8255 mSDtfsCounter, 1914 mSDsluCounter, 6308 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 14563 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:14,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 14563 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:59:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66150 states. [2024-11-28 04:59:22,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66150 to 66150. [2024-11-28 04:59:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66150 states, 57524 states have (on average 1.5679542451846187) internal successors, (90195), 57524 states have internal predecessors, (90195), 8624 states have call successors, (8624), 1 states have call predecessors, (8624), 1 states have return successors, (8624), 8624 states have call predecessors, (8624), 8624 states have call successors, (8624) [2024-11-28 04:59:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66150 states to 66150 states and 107443 transitions. [2024-11-28 04:59:22,535 INFO L78 Accepts]: Start accepts. Automaton has 66150 states and 107443 transitions. Word has length 5345 [2024-11-28 04:59:22,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:22,544 INFO L471 AbstractCegarLoop]: Abstraction has 66150 states and 107443 transitions. [2024-11-28 04:59:22,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 467.6666666666667) internal successors, (1403), 3 states have internal predecessors, (1403), 3 states have call successors, (789), 1 states have call predecessors, (789), 1 states have return successors, (789), 3 states have call predecessors, (789), 3 states have call successors, (789) [2024-11-28 04:59:22,545 INFO L276 IsEmpty]: Start isEmpty. Operand 66150 states and 107443 transitions. [2024-11-28 04:59:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5346 [2024-11-28 04:59:23,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:23,168 INFO L218 NwaCegarLoop]: trace histogram [789, 789, 789, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:23,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:59:23,169 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:23,173 INFO L85 PathProgramCache]: Analyzing trace with hash -65337749, now seen corresponding path program 1 times [2024-11-28 04:59:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363897449] [2024-11-28 04:59:23,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 1284 proven. 3438 refuted. 0 times theorem prover too weak. 1238742 trivial. 0 not checked. [2024-11-28 04:59:58,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:58,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363897449] [2024-11-28 04:59:58,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363897449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:58,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731601268] [2024-11-28 04:59:58,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:58,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:58,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:58,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:58,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:00:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:01,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 10340 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:00:01,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 414956 proven. 2442 refuted. 0 times theorem prover too weak. 826066 trivial. 0 not checked. [2024-11-28 05:00:06,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 1284 proven. 3438 refuted. 0 times theorem prover too weak. 1238742 trivial. 0 not checked. [2024-11-28 05:00:11,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731601268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:11,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:11,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-28 05:00:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720658080] [2024-11-28 05:00:11,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:12,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:00:12,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:12,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:00:12,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:00:12,008 INFO L87 Difference]: Start difference. First operand 66150 states and 107443 transitions. Second operand has 12 states, 11 states have (on average 170.27272727272728) internal successors, (1873), 11 states have internal predecessors, (1873), 6 states have call successors, (1106), 2 states have call predecessors, (1106), 3 states have return successors, (1106), 6 states have call predecessors, (1106), 6 states have call successors, (1106) [2024-11-28 05:00:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:23,347 INFO L93 Difference]: Finished difference Result 134441 states and 218371 transitions. [2024-11-28 05:00:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:00:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 170.27272727272728) internal successors, (1873), 11 states have internal predecessors, (1873), 6 states have call successors, (1106), 2 states have call predecessors, (1106), 3 states have return successors, (1106), 6 states have call predecessors, (1106), 6 states have call successors, (1106) Word has length 5345 [2024-11-28 05:00:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:23,855 INFO L225 Difference]: With dead ends: 134441 [2024-11-28 05:00:23,855 INFO L226 Difference]: Without dead ends: 120084 [2024-11-28 05:00:23,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10702 GetRequests, 10687 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:00:23,901 INFO L435 NwaCegarLoop]: 7194 mSDtfsCounter, 16529 mSDsluCounter, 30013 mSDsCounter, 0 mSdLazyCounter, 7491 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17011 SdHoareTripleChecker+Valid, 37207 SdHoareTripleChecker+Invalid, 8025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 7491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:23,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17011 Valid, 37207 Invalid, 8025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [534 Valid, 7491 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 05:00:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120084 states. [2024-11-28 05:00:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120084 to 106732. [2024-11-28 05:00:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106732 states, 93015 states have (on average 1.568811482019029) internal successors, (145923), 93015 states have internal predecessors, (145923), 13715 states have call successors, (13715), 1 states have call predecessors, (13715), 1 states have return successors, (13715), 13715 states have call predecessors, (13715), 13715 states have call successors, (13715) [2024-11-28 05:00:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106732 states to 106732 states and 173353 transitions. [2024-11-28 05:00:39,674 INFO L78 Accepts]: Start accepts. Automaton has 106732 states and 173353 transitions. Word has length 5345 [2024-11-28 05:00:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:39,679 INFO L471 AbstractCegarLoop]: Abstraction has 106732 states and 173353 transitions. [2024-11-28 05:00:39,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 170.27272727272728) internal successors, (1873), 11 states have internal predecessors, (1873), 6 states have call successors, (1106), 2 states have call predecessors, (1106), 3 states have return successors, (1106), 6 states have call predecessors, (1106), 6 states have call successors, (1106) [2024-11-28 05:00:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 106732 states and 173353 transitions. [2024-11-28 05:00:40,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5346 [2024-11-28 05:00:40,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:40,105 INFO L218 NwaCegarLoop]: trace histogram [789, 789, 789, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:40,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:00:40,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:40,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:40,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 429451123, now seen corresponding path program 1 times [2024-11-28 05:00:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192382292] [2024-11-28 05:00:40,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 2172 proven. 25800 refuted. 0 times theorem prover too weak. 1215492 trivial. 0 not checked. [2024-11-28 05:03:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:05,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192382292] [2024-11-28 05:03:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192382292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:05,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067831749] [2024-11-28 05:03:05,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:05,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:05,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:05,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:05,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dbc3bbd-e46f-4999-9fb0-5f3323a5c44b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:03:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:07,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 10340 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-28 05:03:07,184 INFO L279 TraceCheckSpWp]: Computing forward predicates...