./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/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_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/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_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/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 a110907fd597c889fa1651a894ede8ad5f7a5d99e2454e6581705eb7a1540844 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:36,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:37,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:10:37,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:37,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:37,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:37,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:37,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:37,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:37,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:37,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:37,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:37,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:37,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:37,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:37,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:37,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:37,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:37,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:37,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:37,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:37,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:37,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:37,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:37,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:37,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:37,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:37,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:37,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:37,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:37,083 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:37,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:37,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:10:37,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:10:37,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:37,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:37,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:37,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:37,084 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_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/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 -> a110907fd597c889fa1651a894ede8ad5f7a5d99e2454e6581705eb7a1540844 [2024-11-28 03:10:37,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:37,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:37,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:37,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:37,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:37,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c [2024-11-28 03:10:40,715 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/data/8b26786a0/f002be6f388f4777aea98576adfdcf07/FLAGec23b210b [2024-11-28 03:10:41,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:41,021 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c [2024-11-28 03:10:41,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/data/8b26786a0/f002be6f388f4777aea98576adfdcf07/FLAGec23b210b [2024-11-28 03:10:41,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/data/8b26786a0/f002be6f388f4777aea98576adfdcf07 [2024-11-28 03:10:41,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:41,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:41,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:41,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:41,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:41,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:41" (1/1) ... [2024-11-28 03:10:41,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298b3295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:41, skipping insertion in model container [2024-11-28 03:10:41,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:41" (1/1) ... [2024-11-28 03:10:41,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:42,050 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_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c[42873,42886] [2024-11-28 03:10:42,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:42,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:42,401 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_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/sv-benchmarks/c/xcsp/aim-200-2-0-unsat-4.c[42873,42886] [2024-11-28 03:10:42,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:42,439 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:42,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42 WrapperNode [2024-11-28 03:10:42,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:42,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:42,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:42,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:42,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:42,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,164 INFO L138 Inliner]: procedures = 13, calls = 799, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8248 [2024-11-28 03:10:43,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:43,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:43,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:43,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:43,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,414 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:10:43,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:43,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:44,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:44,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:44,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:44,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:44,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:44,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:44,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (1/1) ... [2024-11-28 03:10:44,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:44,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:44,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:44,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:10:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 03:10:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 03:10:44,737 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:44,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:03,548 INFO L? ?]: Removed 1844 outVars from TransFormulas that were not future-live. [2024-11-28 03:11:03,549 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:03,673 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:03,673 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:11:03,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:03 BoogieIcfgContainer [2024-11-28 03:11:03,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:03,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:11:03,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:11:03,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:11:03,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:41" (1/3) ... [2024-11-28 03:11:03,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b72dc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:03, skipping insertion in model container [2024-11-28 03:11:03,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:42" (2/3) ... [2024-11-28 03:11:03,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b72dc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:03, skipping insertion in model container [2024-11-28 03:11:03,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:03" (3/3) ... [2024-11-28 03:11:03,689 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-unsat-4.c [2024-11-28 03:11:03,707 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:11:03,710 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-unsat-4.c that has 2 procedures, 3810 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 03:11:04,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:04,048 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;@143631a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:04,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:11:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 3810 states, 3015 states have (on average 1.5346600331674958) internal successors, (4627), 3016 states have internal predecessors, (4627), 792 states have call successors, (792), 1 states have call predecessors, (792), 1 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-28 03:11:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5361 [2024-11-28 03:11:04,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:04,460 INFO L218 NwaCegarLoop]: trace histogram [792, 792, 792, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:04,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:04,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1237198533, now seen corresponding path program 1 times [2024-11-28 03:11:04,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:04,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541108795] [2024-11-28 03:11:04,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1252944 backedges. 7908 proven. 60672 refuted. 0 times theorem prover too weak. 1184364 trivial. 0 not checked. [2024-11-28 03:15:59,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:59,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541108795] [2024-11-28 03:15:59,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541108795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391530007] [2024-11-28 03:15:59,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:59,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:59,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:59,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc8e00a-9ecf-4daf-b703-1489d15a7b97/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:16:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:02,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 10361 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-28 03:16:02,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:17:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1252944 backedges. 79004 proven. 41046 refuted. 0 times theorem prover too weak. 1132894 trivial. 0 not checked. [2024-11-28 03:17:59,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1252944 backedges. 8256 proven. 42564 refuted. 0 times theorem prover too weak. 1202124 trivial. 0 not checked. [2024-11-28 03:20:27,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391530007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:27,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:27,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 38, 38] total 127 [2024-11-28 03:20:27,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895165284] [2024-11-28 03:20:27,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:27,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2024-11-28 03:20:27,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:27,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2024-11-28 03:20:27,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1274, Invalid=14728, Unknown=0, NotChecked=0, Total=16002 [2024-11-28 03:20:27,325 INFO L87 Difference]: Start difference. First operand has 3810 states, 3015 states have (on average 1.5346600331674958) internal successors, (4627), 3016 states have internal predecessors, (4627), 792 states have call successors, (792), 1 states have call predecessors, (792), 1 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) Second operand has 127 states, 80 states have (on average 49.9) internal successors, (3992), 87 states have internal predecessors, (3992), 117 states have call successors, (2284), 2 states have call predecessors, (2284), 3 states have return successors, (2286), 110 states have call predecessors, (2286), 117 states have call successors, (2286)