./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-1-6-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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/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 710c4b106c0a5975f43bd0095913c1d2dba076b5764119dc43b031c63f7d76e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:31:44,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:31:44,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:31:44,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:31:44,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:31:44,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:31:44,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:31:44,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:31:44,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:31:44,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:31:44,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:31:44,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:31:44,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:31:44,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:31:44,936 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:31:44,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:31:44,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:31:44,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:31:44,938 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:44,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:44,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:44,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:44,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:44,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:31:44,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:31:44,941 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:31:44,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:31:44,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:31:44,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:31:44,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:31:44,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:31:44,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:31:44,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:31:44,942 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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/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 -> 710c4b106c0a5975f43bd0095913c1d2dba076b5764119dc43b031c63f7d76e3 [2024-11-27 20:31:45,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:31:45,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:31:45,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:31:45,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:31:45,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:31:45,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-1-6-unsat-1.c [2024-11-27 20:31:48,931 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/data/aee6ef4e0/8d4cba0f3b434b15a1dc2e1212fe1201/FLAGe16f1aa4f [2024-11-27 20:31:49,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:31:49,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-1.c [2024-11-27 20:31:49,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/data/aee6ef4e0/8d4cba0f3b434b15a1dc2e1212fe1201/FLAGe16f1aa4f [2024-11-27 20:31:49,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/data/aee6ef4e0/8d4cba0f3b434b15a1dc2e1212fe1201 [2024-11-27 20:31:49,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:31:49,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:31:49,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:49,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:31:49,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:31:49,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c37bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:49, skipping insertion in model container [2024-11-27 20:31:49,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:31:49" (1/1) ... [2024-11-27 20:31:49,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:31:50,296 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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-1.c[38214,38227] [2024-11-27 20:31:50,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:50,368 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:31:50,701 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_60bcee78-a5ba-4047-ab63-0dde0a68ee24/sv-benchmarks/c/xcsp/aim-200-1-6-unsat-1.c[38214,38227] [2024-11-27 20:31:50,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:31:50,735 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:31:50,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50 WrapperNode [2024-11-27 20:31:50,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:31:50,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:50,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:31:50,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:31:50,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:50,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:51,524 INFO L138 Inliner]: procedures = 13, calls = 715, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6932 [2024-11-27 20:31:51,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:31:51,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:31:51,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:31:51,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:31:51,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:51,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:51,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:51,796 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 20:31:51,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:51,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:31:52,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:31:52,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:31:52,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:31:52,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (1/1) ... [2024-11-27 20:31:52,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:52,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:52,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:31:52,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:31:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:31:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:31:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:31:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:31:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-27 20:31:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-27 20:31:52,915 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:31:52,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:32:10,575 INFO L? ?]: Removed 1634 outVars from TransFormulas that were not future-live. [2024-11-27 20:32:10,575 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:32:10,660 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:32:10,660 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:32:10,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:10 BoogieIcfgContainer [2024-11-27 20:32:10,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:32:10,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:32:10,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:32:10,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:32:10,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:31:49" (1/3) ... [2024-11-27 20:32:10,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6818fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:10, skipping insertion in model container [2024-11-27 20:32:10,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:31:50" (2/3) ... [2024-11-27 20:32:10,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6818fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:10, skipping insertion in model container [2024-11-27 20:32:10,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:10" (3/3) ... [2024-11-27 20:32:10,674 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-1-6-unsat-1.c [2024-11-27 20:32:10,693 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:32:10,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-1-6-unsat-1.c that has 2 procedures, 3180 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 20:32:10,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:32:10,919 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;@8e1097c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:32:10,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:32:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 3180 states, 2469 states have (on average 1.528149048197651) internal successors, (3773), 2470 states have internal predecessors, (3773), 708 states have call successors, (708), 1 states have call predecessors, (708), 1 states have return successors, (708), 708 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-27 20:32:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4703 [2024-11-27 20:32:11,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:11,350 INFO L218 NwaCegarLoop]: trace histogram [708, 708, 708, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-27 20:32:11,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:32:11,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -224734055, now seen corresponding path program 1 times [2024-11-27 20:32:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:11,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640102614] [2024-11-27 20:32:11,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 3747 proven. 23358 refuted. 0 times theorem prover too weak. 974007 trivial. 0 not checked. [2024-11-27 20:34:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640102614] [2024-11-27 20:34:11,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640102614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:11,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665689157] [2024-11-27 20:34:11,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:11,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:11,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:11,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:11,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:34:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:13,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 9059 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 20:34:13,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 131708 proven. 9210 refuted. 0 times theorem prover too weak. 860194 trivial. 0 not checked. [2024-11-27 20:34:37,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 2544 proven. 10092 refuted. 0 times theorem prover too weak. 988476 trivial. 0 not checked. [2024-11-27 20:35:04,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665689157] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:04,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:04,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 13, 13] total 42 [2024-11-27 20:35:04,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635725733] [2024-11-27 20:35:04,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:04,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 20:35:04,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:04,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 20:35:04,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1506, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:35:05,003 INFO L87 Difference]: Start difference. First operand has 3180 states, 2469 states have (on average 1.528149048197651) internal successors, (3773), 2470 states have internal predecessors, (3773), 708 states have call successors, (708), 1 states have call predecessors, (708), 1 states have return successors, (708), 708 states have call predecessors, (708), 708 states have call successors, (708) Second operand has 42 states, 27 states have (on average 108.11111111111111) internal successors, (2919), 31 states have internal predecessors, (2919), 37 states have call successors, (1915), 2 states have call predecessors, (1915), 3 states have return successors, (1917), 33 states have call predecessors, (1917), 37 states have call successors, (1917) [2024-11-27 20:36:00,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:00,383 INFO L93 Difference]: Finished difference Result 27943 states and 48854 transitions. [2024-11-27 20:36:00,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-27 20:36:00,390 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 27 states have (on average 108.11111111111111) internal successors, (2919), 31 states have internal predecessors, (2919), 37 states have call successors, (1915), 2 states have call predecessors, (1915), 3 states have return successors, (1917), 33 states have call predecessors, (1917), 37 states have call successors, (1917) Word has length 4702 [2024-11-27 20:36:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:00,573 INFO L225 Difference]: With dead ends: 27943 [2024-11-27 20:36:00,574 INFO L226 Difference]: Without dead ends: 24766 [2024-11-27 20:36:00,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9511 GetRequests, 9413 SyntacticMatches, 6 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1968 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2297, Invalid=6445, Unknown=0, NotChecked=0, Total=8742 [2024-11-27 20:36:00,623 INFO L435 NwaCegarLoop]: 11962 mSDtfsCounter, 134763 mSDsluCounter, 137593 mSDsCounter, 0 mSdLazyCounter, 22576 mSolverCounterSat, 11902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134767 SdHoareTripleChecker+Valid, 149555 SdHoareTripleChecker+Invalid, 34478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 11902 IncrementalHoareTripleChecker+Valid, 22576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:00,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134767 Valid, 149555 Invalid, 34478 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [11902 Valid, 22576 Invalid, 0 Unknown, 0 Unchecked, 42.2s Time] [2024-11-27 20:36:00,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24766 states. [2024-11-27 20:36:04,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24766 to 16182. [2024-11-27 20:36:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16182 states, 13878 states have (on average 1.56470673007638) internal successors, (21715), 13878 states have internal predecessors, (21715), 2302 states have call successors, (2302), 1 states have call predecessors, (2302), 1 states have return successors, (2302), 2302 states have call predecessors, (2302), 2302 states have call successors, (2302) [2024-11-27 20:36:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16182 states to 16182 states and 26319 transitions. [2024-11-27 20:36:04,396 INFO L78 Accepts]: Start accepts. Automaton has 16182 states and 26319 transitions. Word has length 4702 [2024-11-27 20:36:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:04,408 INFO L471 AbstractCegarLoop]: Abstraction has 16182 states and 26319 transitions. [2024-11-27 20:36:04,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 27 states have (on average 108.11111111111111) internal successors, (2919), 31 states have internal predecessors, (2919), 37 states have call successors, (1915), 2 states have call predecessors, (1915), 3 states have return successors, (1917), 33 states have call predecessors, (1917), 37 states have call successors, (1917) [2024-11-27 20:36:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 16182 states and 26319 transitions. [2024-11-27 20:36:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4705 [2024-11-27 20:36:05,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:05,368 INFO L218 NwaCegarLoop]: trace histogram [708, 708, 708, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-27 20:36:05,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:36:05,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:05,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:36:05,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2008277351, now seen corresponding path program 1 times [2024-11-27 20:36:05,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:05,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884249486] [2024-11-27 20:36:05,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 1536 proven. 6912 refuted. 0 times theorem prover too weak. 992664 trivial. 0 not checked. [2024-11-27 20:36:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884249486] [2024-11-27 20:36:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884249486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681600440] [2024-11-27 20:36:40,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:40,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:40,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:40,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:36:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:43,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 9065 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-27 20:36:43,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 222128 proven. 14412 refuted. 0 times theorem prover too weak. 764572 trivial. 0 not checked. [2024-11-27 20:37:14,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:37:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1001112 backedges. 3888 proven. 17052 refuted. 0 times theorem prover too weak. 980172 trivial. 0 not checked. [2024-11-27 20:37:49,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681600440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:37:49,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:37:49,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 21, 21] total 42 [2024-11-27 20:37:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317753710] [2024-11-27 20:37:49,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:37:49,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 20:37:49,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:37:49,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 20:37:49,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1386, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:37:49,640 INFO L87 Difference]: Start difference. First operand 16182 states and 26319 transitions. Second operand has 42 states, 31 states have (on average 88.2258064516129) internal successors, (2735), 31 states have internal predecessors, (2735), 34 states have call successors, (1889), 2 states have call predecessors, (1889), 3 states have return successors, (1891), 34 states have call predecessors, (1891), 34 states have call successors, (1891) [2024-11-27 20:38:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:40,768 INFO L93 Difference]: Finished difference Result 184608 states and 300271 transitions. [2024-11-27 20:38:40,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2024-11-27 20:38:40,770 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 31 states have (on average 88.2258064516129) internal successors, (2735), 31 states have internal predecessors, (2735), 34 states have call successors, (1889), 2 states have call predecessors, (1889), 3 states have return successors, (1891), 34 states have call predecessors, (1891), 34 states have call successors, (1891) Word has length 4704 [2024-11-27 20:38:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:41,503 INFO L225 Difference]: With dead ends: 184608 [2024-11-27 20:38:41,504 INFO L226 Difference]: Without dead ends: 175110 [2024-11-27 20:38:41,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9540 GetRequests, 9382 SyntacticMatches, 3 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7650 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=5973, Invalid=18519, Unknown=0, NotChecked=0, Total=24492 [2024-11-27 20:38:41,602 INFO L435 NwaCegarLoop]: 10567 mSDtfsCounter, 60881 mSDsluCounter, 118103 mSDsCounter, 0 mSdLazyCounter, 23387 mSolverCounterSat, 4144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60968 SdHoareTripleChecker+Valid, 128670 SdHoareTripleChecker+Invalid, 27531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 4144 IncrementalHoareTripleChecker+Valid, 23387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:41,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60968 Valid, 128670 Invalid, 27531 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [4144 Valid, 23387 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2024-11-27 20:38:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175110 states. [2024-11-27 20:39:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175110 to 69792. [2024-11-27 20:39:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69792 states, 60742 states have (on average 1.5694741694379506) internal successors, (95333), 60742 states have internal predecessors, (95333), 9048 states have call successors, (9048), 1 states have call predecessors, (9048), 1 states have return successors, (9048), 9048 states have call predecessors, (9048), 9048 states have call successors, (9048) [2024-11-27 20:39:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69792 states to 69792 states and 113429 transitions. [2024-11-27 20:39:00,945 INFO L78 Accepts]: Start accepts. Automaton has 69792 states and 113429 transitions. Word has length 4704 [2024-11-27 20:39:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:39:00,952 INFO L471 AbstractCegarLoop]: Abstraction has 69792 states and 113429 transitions. [2024-11-27 20:39:00,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 31 states have (on average 88.2258064516129) internal successors, (2735), 31 states have internal predecessors, (2735), 34 states have call successors, (1889), 2 states have call predecessors, (1889), 3 states have return successors, (1891), 34 states have call predecessors, (1891), 34 states have call successors, (1891) [2024-11-27 20:39:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 69792 states and 113429 transitions. [2024-11-27 20:39:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4705 [2024-11-27 20:39:01,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:39:01,357 INFO L218 NwaCegarLoop]: trace histogram [708, 708, 708, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-27 20:39:01,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:39:01,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bcee78-a5ba-4047-ab63-0dde0a68ee24/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:39:01,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:39:01,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:39:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1755812999, now seen corresponding path program 1 times [2024-11-27 20:39:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:39:01,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19705679] [2024-11-27 20:39:01,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:39:01,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:39:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat