./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i --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_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/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_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/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_2896de1a-f326-443d-be3b-4abfccb9acf6/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 46dcd3bee3e07f84df18611ceb0a68103be2f6eabf5254259333ed4c471ba4e1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:44,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:45,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:45:45,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:45,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:45,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:45,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:45,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:45,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:45,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:45,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:45,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:45,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:45,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:45,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:45,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:45,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:45,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:45,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:45,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:45,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:45,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:45,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:45,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:45,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:45,103 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_2896de1a-f326-443d-be3b-4abfccb9acf6/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 -> 46dcd3bee3e07f84df18611ceb0a68103be2f6eabf5254259333ed4c471ba4e1 [2024-11-28 04:45:45,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:45,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:45,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:45,489 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:45,490 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:45,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-28 04:45:48,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/b78f03ed5/0a7a995fde1340f0a7217a351450071d/FLAGafc5de9d1 [2024-11-28 04:45:48,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:48,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-28 04:45:48,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/b78f03ed5/0a7a995fde1340f0a7217a351450071d/FLAGafc5de9d1 [2024-11-28 04:45:48,882 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/b78f03ed5/0a7a995fde1340f0a7217a351450071d [2024-11-28 04:45:48,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:48,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:48,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:48,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:48,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:48,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:48" (1/1) ... [2024-11-28 04:45:48,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c9ee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:48, skipping insertion in model container [2024-11-28 04:45:48,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:48" (1/1) ... [2024-11-28 04:45:48,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:49,112 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_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i[915,928] [2024-11-28 04:45:49,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:49,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:45:49,238 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_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i[915,928] [2024-11-28 04:45:49,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:49,283 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:45:49,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49 WrapperNode [2024-11-28 04:45:49,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:49,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:49,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:45:49,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:45:49,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,333 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-28 04:45:49,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:49,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:45:49,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:45:49,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:45:49,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,378 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:45:49,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,387 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:45:49,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:45:49,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:45:49,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:45:49,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (1/1) ... [2024-11-28 04:45:49,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:49,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:49,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:45:49,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:45:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:45:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:45:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:45:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:45:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:45:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:45:49,609 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:45:49,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:45:50,047 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-28 04:45:50,048 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:45:50,060 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:45:50,060 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:45:50,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:50 BoogieIcfgContainer [2024-11-28 04:45:50,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:45:50,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:45:50,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:45:50,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:45:50,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:45:48" (1/3) ... [2024-11-28 04:45:50,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b845059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:50, skipping insertion in model container [2024-11-28 04:45:50,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:49" (2/3) ... [2024-11-28 04:45:50,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b845059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:50, skipping insertion in model container [2024-11-28 04:45:50,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:50" (3/3) ... [2024-11-28 04:45:50,075 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-66.i [2024-11-28 04:45:50,097 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:45:50,101 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount50_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:45:50,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:50,213 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;@294c6809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:50,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:45:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:45:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:45:50,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:50,232 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:50,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:50,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-28 04:45:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:50,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061346397] [2024-11-28 04:45:50,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:50,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:45:58,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:58,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061346397] [2024-11-28 04:45:58,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061346397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:58,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:58,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:45:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190841830] [2024-11-28 04:45:58,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:58,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:45:58,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:58,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:45:58,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:45:58,339 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:45:59,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:59,980 INFO L93 Difference]: Finished difference Result 236 states and 392 transitions. [2024-11-28 04:45:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:45:59,983 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:45:59,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:59,992 INFO L225 Difference]: With dead ends: 236 [2024-11-28 04:45:59,992 INFO L226 Difference]: Without dead ends: 178 [2024-11-28 04:45:59,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:46:00,004 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 187 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:00,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 539 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:46:00,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-28 04:46:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 102. [2024-11-28 04:46:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:46:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-28 04:46:00,095 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-28 04:46:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:00,097 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-28 04:46:00,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-28 04:46:00,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:00,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:00,106 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:00,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:46:00,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:00,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-28 04:46:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:00,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241421110] [2024-11-28 04:46:00,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:00,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:07,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:07,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241421110] [2024-11-28 04:46:07,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241421110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:07,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:07,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:46:07,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303219505] [2024-11-28 04:46:07,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:07,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:46:07,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:07,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:46:07,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:46:07,407 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:10,246 INFO L93 Difference]: Finished difference Result 178 states and 242 transitions. [2024-11-28 04:46:10,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:46:10,247 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:10,249 INFO L225 Difference]: With dead ends: 178 [2024-11-28 04:46:10,249 INFO L226 Difference]: Without dead ends: 176 [2024-11-28 04:46:10,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:46:10,251 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 156 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:10,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 581 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:46:10,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-28 04:46:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 102. [2024-11-28 04:46:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:46:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-28 04:46:10,286 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-28 04:46:10,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:10,287 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-28 04:46:10,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-28 04:46:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:10,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:10,289 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:10,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:46:10,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash 718308833, now seen corresponding path program 1 times [2024-11-28 04:46:10,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235470001] [2024-11-28 04:46:10,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:16,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:16,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235470001] [2024-11-28 04:46:16,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235470001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:16,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:16,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:46:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809628484] [2024-11-28 04:46:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:16,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:46:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:16,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:46:16,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:46:16,129 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:17,604 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-28 04:46:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:46:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:17,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:17,607 INFO L225 Difference]: With dead ends: 185 [2024-11-28 04:46:17,607 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 04:46:17,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:46:17,609 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:17,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 648 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:46:17,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 04:46:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 106. [2024-11-28 04:46:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:46:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 158 transitions. [2024-11-28 04:46:17,627 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 158 transitions. Word has length 119 [2024-11-28 04:46:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:17,628 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 158 transitions. [2024-11-28 04:46:17,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 158 transitions. [2024-11-28 04:46:17,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:17,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:17,630 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:17,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:46:17,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:17,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:17,631 INFO L85 PathProgramCache]: Analyzing trace with hash 720155875, now seen corresponding path program 1 times [2024-11-28 04:46:17,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:17,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516295843] [2024-11-28 04:46:17,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:23,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516295843] [2024-11-28 04:46:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516295843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:23,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:23,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 04:46:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080687502] [2024-11-28 04:46:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:46:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:23,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:46:23,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:46:23,810 INFO L87 Difference]: Start difference. First operand 106 states and 158 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:25,556 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-28 04:46:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:46:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:25,559 INFO L225 Difference]: With dead ends: 183 [2024-11-28 04:46:25,559 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 04:46:25,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:46:25,560 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:25,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 625 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:46:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 04:46:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 102. [2024-11-28 04:46:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 04:46:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-28 04:46:25,583 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-28 04:46:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:25,584 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-28 04:46:25,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-28 04:46:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:25,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:25,586 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:25,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:46:25,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:25,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash 296415901, now seen corresponding path program 1 times [2024-11-28 04:46:25,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:25,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490714769] [2024-11-28 04:46:25,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:25,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:25,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:25,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490714769] [2024-11-28 04:46:25,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490714769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:25,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:25,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:25,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96294408] [2024-11-28 04:46:25,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:25,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:25,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:25,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:25,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:25,645 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:25,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:25,703 INFO L93 Difference]: Finished difference Result 281 states and 422 transitions. [2024-11-28 04:46:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:25,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:25,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:25,707 INFO L225 Difference]: With dead ends: 281 [2024-11-28 04:46:25,707 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 04:46:25,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:25,708 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 73 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:25,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 222 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:46:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 04:46:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2024-11-28 04:46:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 133 states have internal predecessors, (174), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-28 04:46:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 262 transitions. [2024-11-28 04:46:25,758 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 262 transitions. Word has length 119 [2024-11-28 04:46:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:25,760 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 262 transitions. [2024-11-28 04:46:25,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 262 transitions. [2024-11-28 04:46:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:25,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:25,763 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:25,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:46:25,764 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:25,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:25,764 INFO L85 PathProgramCache]: Analyzing trace with hash -512930725, now seen corresponding path program 1 times [2024-11-28 04:46:25,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:25,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66933427] [2024-11-28 04:46:25,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:25,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:25,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:25,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66933427] [2024-11-28 04:46:25,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66933427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:25,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:25,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:25,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731233409] [2024-11-28 04:46:25,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:25,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:25,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:25,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:25,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:25,882 INFO L87 Difference]: Start difference. First operand 180 states and 262 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:26,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:26,141 INFO L93 Difference]: Finished difference Result 530 states and 761 transitions. [2024-11-28 04:46:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:26,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:26,149 INFO L225 Difference]: With dead ends: 530 [2024-11-28 04:46:26,149 INFO L226 Difference]: Without dead ends: 353 [2024-11-28 04:46:26,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:46:26,154 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 71 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:26,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 263 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:46:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-28 04:46:26,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 308. [2024-11-28 04:46:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 215 states have (on average 1.2976744186046512) internal successors, (279), 218 states have internal predecessors, (279), 84 states have call successors, (84), 8 states have call predecessors, (84), 8 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-28 04:46:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 447 transitions. [2024-11-28 04:46:26,220 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 447 transitions. Word has length 119 [2024-11-28 04:46:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:26,221 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 447 transitions. [2024-11-28 04:46:26,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 447 transitions. [2024-11-28 04:46:26,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:26,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:26,223 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:26,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:46:26,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:26,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash 167127645, now seen corresponding path program 1 times [2024-11-28 04:46:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800938706] [2024-11-28 04:46:26,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:26,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:28,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:28,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800938706] [2024-11-28 04:46:28,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800938706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:46:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339244167] [2024-11-28 04:46:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:28,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:46:28,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:28,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:46:28,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:46:28,929 INFO L87 Difference]: Start difference. First operand 308 states and 447 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:30,097 INFO L93 Difference]: Finished difference Result 454 states and 614 transitions. [2024-11-28 04:46:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:46:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:30,101 INFO L225 Difference]: With dead ends: 454 [2024-11-28 04:46:30,101 INFO L226 Difference]: Without dead ends: 452 [2024-11-28 04:46:30,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:46:30,102 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 286 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:30,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 464 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:46:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-28 04:46:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 364. [2024-11-28 04:46:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 04:46:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-28 04:46:30,168 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-28 04:46:30,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:30,169 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-28 04:46:30,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-28 04:46:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:30,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:30,171 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:30,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:46:30,172 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:30,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash 168974687, now seen corresponding path program 1 times [2024-11-28 04:46:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:30,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323177097] [2024-11-28 04:46:30,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:30,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323177097] [2024-11-28 04:46:34,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323177097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:34,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:34,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:46:34,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005828064] [2024-11-28 04:46:34,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:34,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:46:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:34,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:46:34,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:46:34,645 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:36,698 INFO L93 Difference]: Finished difference Result 452 states and 612 transitions. [2024-11-28 04:46:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:46:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 04:46:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:36,702 INFO L225 Difference]: With dead ends: 452 [2024-11-28 04:46:36,703 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 04:46:36,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:46:36,704 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 238 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:36,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 557 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:46:36,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 04:46:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 364. [2024-11-28 04:46:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 04:46:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-28 04:46:36,784 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-28 04:46:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:36,785 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-28 04:46:36,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 04:46:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-28 04:46:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:36,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:36,789 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:36,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:46:36,789 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:36,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash -548555551, now seen corresponding path program 1 times [2024-11-28 04:46:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:36,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059851710] [2024-11-28 04:46:36,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 04:46:37,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:37,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059851710] [2024-11-28 04:46:37,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059851710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:37,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:37,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:46:37,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084180947] [2024-11-28 04:46:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:37,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:46:37,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:37,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:46:37,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:46:37,131 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:46:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:37,481 INFO L93 Difference]: Finished difference Result 689 states and 965 transitions. [2024-11-28 04:46:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:46:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2024-11-28 04:46:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:37,488 INFO L225 Difference]: With dead ends: 689 [2024-11-28 04:46:37,489 INFO L226 Difference]: Without dead ends: 371 [2024-11-28 04:46:37,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:46:37,492 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 125 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:37,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 151 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:46:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-28 04:46:37,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 362. [2024-11-28 04:46:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 252 states have (on average 1.2341269841269842) internal successors, (311), 257 states have internal predecessors, (311), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 04:46:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 503 transitions. [2024-11-28 04:46:37,571 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 503 transitions. Word has length 119 [2024-11-28 04:46:37,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:37,574 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 503 transitions. [2024-11-28 04:46:37,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:46:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 503 transitions. [2024-11-28 04:46:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 04:46:37,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:37,576 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:37,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:46:37,576 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:37,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 306968243, now seen corresponding path program 1 times [2024-11-28 04:46:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037084637] [2024-11-28 04:46:37,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:46:37,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439215345] [2024-11-28 04:46:37,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:37,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:37,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:37,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:37,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:46:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:37,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:46:37,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 93 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:46:39,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:40,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:40,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037084637] [2024-11-28 04:46:40,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:46:40,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439215345] [2024-11-28 04:46:40,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439215345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:40,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:46:40,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:46:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566934284] [2024-11-28 04:46:40,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:40,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:46:40,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:40,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:46:40,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:46:40,785 INFO L87 Difference]: Start difference. First operand 362 states and 503 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:46:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:41,991 INFO L93 Difference]: Finished difference Result 985 states and 1261 transitions. [2024-11-28 04:46:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:46:41,992 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 120 [2024-11-28 04:46:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:41,996 INFO L225 Difference]: With dead ends: 985 [2024-11-28 04:46:41,997 INFO L226 Difference]: Without dead ends: 667 [2024-11-28 04:46:41,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:46:42,000 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 98 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:42,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 324 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:46:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-28 04:46:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 553. [2024-11-28 04:46:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 386 states have (on average 1.1580310880829014) internal successors, (447), 397 states have internal predecessors, (447), 124 states have call successors, (124), 42 states have call predecessors, (124), 42 states have return successors, (124), 113 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 04:46:42,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 695 transitions. [2024-11-28 04:46:42,147 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 695 transitions. Word has length 120 [2024-11-28 04:46:42,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:42,147 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 695 transitions. [2024-11-28 04:46:42,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:46:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 695 transitions. [2024-11-28 04:46:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 04:46:42,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:42,150 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:42,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:46:42,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:42,354 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:42,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash 308815285, now seen corresponding path program 1 times [2024-11-28 04:46:42,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:42,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813501564] [2024-11-28 04:46:42,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:46:42,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381922547] [2024-11-28 04:46:42,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:42,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:42,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:42,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:46:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:46:42,697 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:46:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:46:42,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:46:42,873 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:46:42,874 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:46:42,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:43,081 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:43,199 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:46:43,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:46:43 BoogieIcfgContainer [2024-11-28 04:46:43,203 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:46:43,203 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:46:43,204 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:46:43,204 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:46:43,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:50" (3/4) ... [2024-11-28 04:46:43,208 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:46:43,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:46:43,210 INFO L158 Benchmark]: Toolchain (without parser) took 54323.74ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 92.5MB in the beginning and 368.6MB in the end (delta: -276.1MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2024-11-28 04:46:43,210 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:46:43,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.68ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.0MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:46:43,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.01ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:46:43,211 INFO L158 Benchmark]: Boogie Preprocessor took 77.01ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 71.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:46:43,211 INFO L158 Benchmark]: RCFGBuilder took 648.93ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 53.1MB in the end (delta: 18.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:46:43,212 INFO L158 Benchmark]: TraceAbstraction took 53136.90ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 52.3MB in the beginning and 371.4MB in the end (delta: -319.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-11-28 04:46:43,212 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 478.2MB. Free memory was 371.4MB in the beginning and 368.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:46:43,214 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.68ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.0MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.01ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 77.01ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 71.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 648.93ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 53.1MB in the end (delta: 18.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 53136.90ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 52.3MB in the beginning and 371.4MB in the end (delta: -319.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 478.2MB. Free memory was 371.4MB in the beginning and 368.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 120. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] unsigned char last_1_var_1_12 = 1; VAL [isInitial=0, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L117] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L127] RET updateLastVariables() [L128] CALL updateVariables() [L88] var_1_3 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L89] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L91] var_1_4 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L92] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L94] var_1_6 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L95] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L97] var_1_7 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L98] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L100] var_1_10 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L101] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L103] var_1_11 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L104] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L106] var_1_14 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L107] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L109] var_1_20 = __VERIFIER_nondet_short() [L110] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L110] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L112] var_1_21 = __VERIFIER_nondet_short() [L113] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L113] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L128] RET updateVariables() [L129] CALL step() [L43] signed char stepLocal_1 = var_1_6; [L44] unsigned char stepLocal_0 = last_1_var_1_12; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_1=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L45] COND FALSE !(-25 == stepLocal_1) [L50] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L52] signed char stepLocal_2 = var_1_7; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_2=127, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L53] COND TRUE var_1_8 >= stepLocal_2 [L54] var_1_12 = (! var_1_14) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L56] COND TRUE \read(var_1_12) [L57] var_1_1 = (var_1_3 + var_1_4) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L59] COND TRUE var_1_4 >= (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L60] COND TRUE \read(var_1_12) [L61] var_1_5 = 8.25 VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L64] signed char stepLocal_4 = var_1_6; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_4=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L65] COND TRUE var_1_1 < stepLocal_4 [L66] var_1_18 = (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L70] COND TRUE \read(var_1_12) [L71] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L73] COND TRUE -64 > (var_1_6 + var_1_19) [L74] var_1_15 = (var_1_11 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L82] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_3=49279, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L83] COND FALSE !(var_1_19 > stepLocal_3) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L129] RET step() [L130] CALL, EXPR property() [L120-L121] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.9s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1566 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1561 mSDsluCounter, 4374 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3441 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3681 IncrementalHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 933 mSDtfsCounter, 3681 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=553occurred in iteration=10, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 650 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 1551 NumberOfCodeBlocks, 1551 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1181 ConstructedInterpolants, 1 QuantifiedInterpolants, 12305 SizeOfPredicates, 7 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 6027/6120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:46:43,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/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_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/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 46dcd3bee3e07f84df18611ceb0a68103be2f6eabf5254259333ed4c471ba4e1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:46,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:46,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:46:46,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:46,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:46,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:46,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:46,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:46,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:46,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:46,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:46,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:46,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:46,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:46,299 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:46,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:46,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:46:46,301 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:46:46,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:46:46,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:46,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:46:46,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:46,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:46:46,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:46,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:46,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:46,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:46,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:46,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:46,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:46,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:46,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:46,306 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:46:46,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:46:46,307 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:46:46,307 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:46:46,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:46,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:46,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:46,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:46,308 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_2896de1a-f326-443d-be3b-4abfccb9acf6/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 -> 46dcd3bee3e07f84df18611ceb0a68103be2f6eabf5254259333ed4c471ba4e1 [2024-11-28 04:46:46,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:46,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:46,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:46,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:46,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:46,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-28 04:46:50,007 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/61df8f50d/b97018fca043497cb970ac4748767469/FLAG89262dc28 [2024-11-28 04:46:50,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:50,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i [2024-11-28 04:46:50,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/61df8f50d/b97018fca043497cb970ac4748767469/FLAG89262dc28 [2024-11-28 04:46:50,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/data/61df8f50d/b97018fca043497cb970ac4748767469 [2024-11-28 04:46:50,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:50,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:50,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:50,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:50,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:50,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dafe0ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50, skipping insertion in model container [2024-11-28 04:46:50,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:50,645 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_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i[915,928] [2024-11-28 04:46:50,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:50,780 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:46:50,795 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_2896de1a-f326-443d-be3b-4abfccb9acf6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-66.i[915,928] [2024-11-28 04:46:50,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:50,850 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:46:50,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50 WrapperNode [2024-11-28 04:46:50,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:50,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:50,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:46:50,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:46:50,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,934 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-28 04:46:50,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:50,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:46:50,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:46:50,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:46:50,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,979 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:46:50,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:50,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,004 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:46:51,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:46:51,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:46:51,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:46:51,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (1/1) ... [2024-11-28 04:46:51,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:51,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:51,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:46:51,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:46:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:46:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:46:51,110 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:46:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:46:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:46:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:46:51,218 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:46:51,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:46:51,674 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-28 04:46:51,674 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:46:51,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:46:51,693 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:46:51,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:51 BoogieIcfgContainer [2024-11-28 04:46:51,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:46:51,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:46:51,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:46:51,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:46:51,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:46:50" (1/3) ... [2024-11-28 04:46:51,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c343a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:51, skipping insertion in model container [2024-11-28 04:46:51,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:50" (2/3) ... [2024-11-28 04:46:51,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c343a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:51, skipping insertion in model container [2024-11-28 04:46:51,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:51" (3/3) ... [2024-11-28 04:46:51,711 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-66.i [2024-11-28 04:46:51,732 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:46:51,733 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount50_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:46:51,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:46:51,836 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;@b7add47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:46:51,837 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:46:51,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:46:51,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:46:51,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:51,857 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:51,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:51,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:51,862 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-28 04:46:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:46:51,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99513152] [2024-11-28 04:46:51,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:51,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:46:51,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:46:51,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:46:51,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:46:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:52,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:46:52,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 406 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 04:46:55,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:00,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:00,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99513152] [2024-11-28 04:47:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99513152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:00,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2008706568] [2024-11-28 04:47:00,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:00,254 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:00,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:47:00,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:47:00,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-28 04:47:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:00,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:47:00,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 388 proven. 72 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 04:47:10,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:18,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2008706568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:18,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:47:18,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-11-28 04:47:18,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033440142] [2024-11-28 04:47:18,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:18,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:47:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:18,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:47:18,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=650, Unknown=1, NotChecked=0, Total=756 [2024-11-28 04:47:18,073 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 04:47:21,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:36,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:47:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:52,645 INFO L93 Difference]: Finished difference Result 169 states and 274 transitions. [2024-11-28 04:47:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:47:52,648 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 119 [2024-11-28 04:47:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:52,657 INFO L225 Difference]: With dead ends: 169 [2024-11-28 04:47:52,657 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 04:47:52,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=532, Invalid=2223, Unknown=1, NotChecked=0, Total=2756 [2024-11-28 04:47:52,665 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 206 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:52,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 384 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time] [2024-11-28 04:47:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 04:47:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-11-28 04:47:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 70 states have internal predecessors, (83), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 04:47:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2024-11-28 04:47:52,734 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 119 [2024-11-28 04:47:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:52,735 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2024-11-28 04:47:52,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-28 04:47:52,736 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2024-11-28 04:47:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:47:52,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:52,741 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:52,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:47:52,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-28 04:47:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:53,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-28 04:47:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667771522] [2024-11-28 04:47:53,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:53,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:47:53,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:53,150 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:47:53,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2896de1a-f326-443d-be3b-4abfccb9acf6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 04:47:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:53,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 04:47:53,388 INFO L279 TraceCheckSpWp]: Computing forward predicates...