./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/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 29a5d0230ebb07e27f7261116bfe957b6d313b894dbf0be53bc2cb9dd6f11757 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:16:59,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:16:59,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:16:59,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:16:59,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:16:59,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:16:59,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:16:59,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:16:59,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:16:59,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:16:59,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:16:59,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:16:59,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:16:59,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:16:59,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:16:59,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:16:59,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:16:59,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:16:59,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:16:59,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:16:59,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:16:59,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:16:59,977 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:16:59,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:16:59,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:16:59,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:16:59,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:16:59,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:16:59,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:16:59,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:16:59,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:16:59,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:16:59,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:16:59,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:16:59,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:16:59,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:16:59,980 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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/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 -> 29a5d0230ebb07e27f7261116bfe957b6d313b894dbf0be53bc2cb9dd6f11757 [2024-11-27 20:17:00,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:17:00,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:17:00,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:17:00,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:17:00,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:17:00,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.c [2024-11-27 20:17:03,300 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/data/65cf4510b/267cd85b3a864c7b9a82b75cf67b7cd8/FLAG781075b3b [2024-11-27 20:17:03,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:17:03,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.c [2024-11-27 20:17:03,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/data/65cf4510b/267cd85b3a864c7b9a82b75cf67b7cd8/FLAG781075b3b [2024-11-27 20:17:03,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/data/65cf4510b/267cd85b3a864c7b9a82b75cf67b7cd8 [2024-11-27 20:17:03,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:17:03,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:17:03,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:03,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:17:03,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:17:03,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:03" (1/1) ... [2024-11-27 20:17:03,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52731dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:03, skipping insertion in model container [2024-11-27 20:17:03,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:17:03" (1/1) ... [2024-11-27 20:17:03,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:17:04,452 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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.c[42830,42843] [2024-11-27 20:17:04,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:04,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:17:04,715 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_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-1.c[42830,42843] [2024-11-27 20:17:04,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:17:04,759 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:17:04,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04 WrapperNode [2024-11-27 20:17:04,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:17:04,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:04,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:17:04,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:17:04,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:04,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,405 INFO L138 Inliner]: procedures = 13, calls = 796, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8261 [2024-11-27 20:17:05,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:17:05,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:17:05,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:17:05,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:17:05,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,662 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:17:05,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,871 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:05,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:06,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:06,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:17:06,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:17:06,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:17:06,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:17:06,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (1/1) ... [2024-11-27 20:17:06,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:17:06,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:06,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:17:06,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:17:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:17:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:17:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:17:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:17:06,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 20:17:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 20:17:06,609 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:17:06,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:17:23,481 INFO L? ?]: Removed 1859 outVars from TransFormulas that were not future-live. [2024-11-27 20:17:23,485 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:17:23,631 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:17:23,632 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:17:23,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:23 BoogieIcfgContainer [2024-11-27 20:17:23,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:17:23,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:17:23,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:17:23,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:17:23,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:17:03" (1/3) ... [2024-11-27 20:17:23,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70af4cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:23, skipping insertion in model container [2024-11-27 20:17:23,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:17:04" (2/3) ... [2024-11-27 20:17:23,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70af4cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:17:23, skipping insertion in model container [2024-11-27 20:17:23,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:17:23" (3/3) ... [2024-11-27 20:17:23,656 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-unsat-1.c [2024-11-27 20:17:23,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:17:23,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-unsat-1.c that has 2 procedures, 3810 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 20:17:23,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:17:23,864 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;@5e940551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:17:23,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:17:23,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 3810 states, 3018 states have (on average 1.535453943008615) internal successors, (4634), 3019 states have internal predecessors, (4634), 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) [2024-11-27 20:17:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5345 [2024-11-27 20:17:24,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:24,202 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] [2024-11-27 20:17:24,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:24,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1025620898, now seen corresponding path program 1 times [2024-11-27 20:17:24,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:24,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31777145] [2024-11-27 20:17:24,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 0 proven. 1576 refuted. 0 times theorem prover too weak. 1241888 trivial. 0 not checked. [2024-11-27 20:17:31,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:31,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31777145] [2024-11-27 20:17:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31777145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:17:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562673918] [2024-11-27 20:17:31,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:31,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:17:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:17:31,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:17:31,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:17:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:34,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 10337 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:17:34,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:17:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 1241888 trivial. 0 not checked. [2024-11-27 20:17:34,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:17:34,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562673918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:34,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:17:34,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:17:34,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679677360] [2024-11-27 20:17:34,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:34,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:17:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:34,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:17:34,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:17:34,861 INFO L87 Difference]: Start difference. First operand has 3810 states, 3018 states have (on average 1.535453943008615) internal successors, (4634), 3019 states have internal predecessors, (4634), 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 702.0) internal successors, (1404), 2 states have internal predecessors, (1404), 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) [2024-11-27 20:17:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:17:35,305 INFO L93 Difference]: Finished difference Result 7614 states and 13207 transitions. [2024-11-27 20:17:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:17:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 702.0) internal successors, (1404), 2 states have internal predecessors, (1404), 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 5344 [2024-11-27 20:17:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:17:35,360 INFO L225 Difference]: With dead ends: 7614 [2024-11-27 20:17:35,360 INFO L226 Difference]: Without dead ends: 3807 [2024-11-27 20:17:35,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5345 GetRequests, 5345 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:17:35,387 INFO L435 NwaCegarLoop]: 6208 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, 6208 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 [2024-11-27 20:17:35,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:17:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2024-11-27 20:17:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3807. [2024-11-27 20:17:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3016 states have (on average 1.5351458885941645) internal successors, (4630), 3016 states have internal predecessors, (4630), 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) [2024-11-27 20:17:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 6208 transitions. [2024-11-27 20:17:36,098 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 6208 transitions. Word has length 5344 [2024-11-27 20:17:36,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:17:36,102 INFO L471 AbstractCegarLoop]: Abstraction has 3807 states and 6208 transitions. [2024-11-27 20:17:36,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 702.0) internal successors, (1404), 2 states have internal predecessors, (1404), 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) [2024-11-27 20:17:36,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 6208 transitions. [2024-11-27 20:17:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5345 [2024-11-27 20:17:36,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:17:36,395 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] [2024-11-27 20:17:36,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:17:36,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:17:36,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:17:36,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1058240900, now seen corresponding path program 1 times [2024-11-27 20:17:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:36,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151296144] [2024-11-27 20:17:36,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:17:36,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 8067 proven. 53655 refuted. 0 times theorem prover too weak. 1181742 trivial. 0 not checked. [2024-11-27 20:21:23,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151296144] [2024-11-27 20:21:23,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151296144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:21:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616393793] [2024-11-27 20:21:23,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:23,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:21:23,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:23,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:21:23,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d1ddb-303d-46ea-b0ae-c3f6c05f20ac/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:21:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:25,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 10337 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-27 20:21:25,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 159488 proven. 26868 refuted. 0 times theorem prover too weak. 1057108 trivial. 0 not checked. [2024-11-27 20:22:44,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1243464 backedges. 3456 proven. 29094 refuted. 0 times theorem prover too weak. 1210914 trivial. 0 not checked. [2024-11-27 20:24:07,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616393793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:07,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:07,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 26, 26] total 94 [2024-11-27 20:24:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691433282] [2024-11-27 20:24:07,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:07,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-11-27 20:24:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:07,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-11-27 20:24:07,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=818, Invalid=7924, Unknown=0, NotChecked=0, Total=8742 [2024-11-27 20:24:07,669 INFO L87 Difference]: Start difference. First operand 3807 states and 6208 transitions. Second operand has 94 states, 60 states have (on average 66.35) internal successors, (3981), 67 states have internal predecessors, (3981), 89 states have call successors, (2312), 2 states have call predecessors, (2312), 3 states have return successors, (2314), 82 states have call predecessors, (2314), 89 states have call successors, (2314)