./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya --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 de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:07:27,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:07:27,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:07:27,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:07:27,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:07:27,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:07:27,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:07:27,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:07:27,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:07:27,423 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:07:27,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:07:27,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:07:27,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:07:27,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:07:27,426 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:07:27,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:07:27,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:07:27,428 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:07:27,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:07:27,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:07:27,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:07:27,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:07:27,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:07:27,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:07:27,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:07:27,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:07:27,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:07:27,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:07:27,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:07:27,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:07:27,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:07:27,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:07:27,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:07:27,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:07:27,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:07:27,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:07:27,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:07:27,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:07:27,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:07:27,435 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:07:27,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:07:27,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:07:27,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2023-11-29 00:07:27,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:07:27,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:07:27,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:07:27,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:07:27,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:07:27,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2023-11-29 00:07:30,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:07:30,610 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:07:30,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2023-11-29 00:07:30,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/data/b1daa6e9d/cadb455e70434d3fb83a7f15debe20ad/FLAG1a0cb8ff1 [2023-11-29 00:07:30,631 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/data/b1daa6e9d/cadb455e70434d3fb83a7f15debe20ad [2023-11-29 00:07:30,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:07:30,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:07:30,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:07:30,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:07:30,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:07:30,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:07:30" (1/1) ... [2023-11-29 00:07:30,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c13359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:30, skipping insertion in model container [2023-11-29 00:07:30,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:07:30" (1/1) ... [2023-11-29 00:07:30,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:07:30,892 WARN L240 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_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2023-11-29 00:07:30,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:07:30,914 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:07:31,000 WARN L240 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_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2023-11-29 00:07:31,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:07:31,015 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:07:31,021 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:07:31,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31 WrapperNode [2023-11-29 00:07:31,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:07:31,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:07:31,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:07:31,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:07:31,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,091 INFO L138 Inliner]: procedures = 17, calls = 293, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 793 [2023-11-29 00:07:31,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:07:31,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:07:31,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:07:31,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:07:31,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,137 INFO L175 MemorySlicer]: Split 188 memory accesses to 5 slices as follows [2, 7, 2, 41, 136]. 72 percent of accesses are in the largest equivalence class. The 137 initializations are split as follows [2, 7, 2, 0, 126]. The 0 writes are split as follows [0, 0, 0, 0, 0]. [2023-11-29 00:07:31,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:07:31,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:07:31,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:07:31,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:07:31,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (1/1) ... [2023-11-29 00:07:31,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:07:31,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:31,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:07:31,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:07:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:07:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:07:31,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:07:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:07:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 00:07:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-29 00:07:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:07:31,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:07:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:07:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:07:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:07:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:07:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:07:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:07:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:07:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:07:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:07:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:07:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:07:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:07:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:07:31,436 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:07:31,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:07:32,040 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:07:32,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:07:32,099 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:07:32,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:07:32 BoogieIcfgContainer [2023-11-29 00:07:32,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:07:32,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:07:32,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:07:32,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:07:32,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:07:30" (1/3) ... [2023-11-29 00:07:32,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b312b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:07:32, skipping insertion in model container [2023-11-29 00:07:32,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:07:31" (2/3) ... [2023-11-29 00:07:32,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b312b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:07:32, skipping insertion in model container [2023-11-29 00:07:32,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:07:32" (3/3) ... [2023-11-29 00:07:32,111 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2023-11-29 00:07:32,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:07:32,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:07:32,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:07:32,193 INFO L357 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, mHoare=true, 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;@28ad737b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:07:32,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:07:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 00:07:32,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:32,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:32,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:07:32,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash -801370442, now seen corresponding path program 1 times [2023-11-29 00:07:32,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:32,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215633194] [2023-11-29 00:07:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:32,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:33,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:33,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215633194] [2023-11-29 00:07:33,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215633194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:07:33,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:07:33,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 00:07:33,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502676298] [2023-11-29 00:07:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:07:33,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:07:33,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:34,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:07:34,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:07:34,026 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:34,572 INFO L93 Difference]: Finished difference Result 71 states and 115 transitions. [2023-11-29 00:07:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:07:34,575 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-29 00:07:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:34,584 INFO L225 Difference]: With dead ends: 71 [2023-11-29 00:07:34,584 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 00:07:34,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:07:34,591 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 77 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:34,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 368 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:07:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 00:07:34,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2023-11-29 00:07:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:34,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2023-11-29 00:07:34,629 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2023-11-29 00:07:34,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:34,629 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2023-11-29 00:07:34,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2023-11-29 00:07:34,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 00:07:34,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:34,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:34,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:07:34,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:07:34,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:34,634 INFO L85 PathProgramCache]: Analyzing trace with hash 439022891, now seen corresponding path program 1 times [2023-11-29 00:07:34,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:34,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745371859] [2023-11-29 00:07:34,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:34,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:35,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:35,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745371859] [2023-11-29 00:07:35,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745371859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880381165] [2023-11-29 00:07:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:35,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:35,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:35,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:35,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:07:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:36,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:07:36,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:36,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:36,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880381165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:36,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:36,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 30 [2023-11-29 00:07:36,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731418949] [2023-11-29 00:07:36,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:36,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 00:07:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:36,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 00:07:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:07:36,981 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:44,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:07:44,404 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2023-11-29 00:07:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 00:07:44,404 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-29 00:07:44,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:07:44,406 INFO L225 Difference]: With dead ends: 114 [2023-11-29 00:07:44,407 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 00:07:44,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=683, Invalid=1867, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 00:07:44,409 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 354 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:07:44,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 206 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:07:44,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 00:07:44,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2023-11-29 00:07:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 108 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2023-11-29 00:07:44,418 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 48 [2023-11-29 00:07:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:07:44,418 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2023-11-29 00:07:44,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:07:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2023-11-29 00:07:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 00:07:44,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:07:44,422 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:07:44,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:07:44,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:44,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:07:44,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:07:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash 665402987, now seen corresponding path program 2 times [2023-11-29 00:07:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:07:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413137881] [2023-11-29 00:07:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:07:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:07:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:07:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:46,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:07:46,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413137881] [2023-11-29 00:07:46,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413137881] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:07:46,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809929248] [2023-11-29 00:07:46,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:07:46,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:07:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:07:46,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:07:46,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:07:47,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:07:47,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:07:47,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 00:07:47,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:07:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:47,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:07:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:07:49,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809929248] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:07:49,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:07:49,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26, 26] total 54 [2023-11-29 00:07:49,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003290130] [2023-11-29 00:07:49,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:07:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-29 00:07:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:07:49,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-29 00:07:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=709, Invalid=2153, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 00:07:49,028 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:03,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:09:03,850 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2023-11-29 00:09:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 00:09:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-11-29 00:09:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:09:03,853 INFO L225 Difference]: With dead ends: 214 [2023-11-29 00:09:03,853 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 00:09:03,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 75.1s TimeCoverageRelationStatistics Valid=2207, Invalid=6722, Unknown=1, NotChecked=0, Total=8930 [2023-11-29 00:09:03,858 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 290 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:09:03,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 669 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:09:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 00:09:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2023-11-29 00:09:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.0048076923076923) internal successors, (209), 208 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2023-11-29 00:09:03,875 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 108 [2023-11-29 00:09:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:09:03,875 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2023-11-29 00:09:03,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2023-11-29 00:09:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 00:09:03,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:09:03,880 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:09:03,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:09:04,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:09:04,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:09:04,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:09:04,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1000414421, now seen corresponding path program 3 times [2023-11-29 00:09:04,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:09:04,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77061716] [2023-11-29 00:09:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:09:04,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:09:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:09:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:09:09,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:09:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77061716] [2023-11-29 00:09:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77061716] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:09:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962459900] [2023-11-29 00:09:09,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:09:09,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:09:09,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:09:09,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:09:09,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:09:11,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 00:09:11,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:09:11,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 00:09:11,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:09:12,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:09:12,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-29 00:09:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 96 proven. 131 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2023-11-29 00:09:12,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:09:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2023-11-29 00:09:17,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962459900] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:09:17,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:09:17,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 9, 9] total 64 [2023-11-29 00:09:17,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41281930] [2023-11-29 00:09:17,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:09:17,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-11-29 00:09:17,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:09:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-11-29 00:09:17,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=436, Invalid=3596, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 00:09:17,039 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:26,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:09:26,766 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2023-11-29 00:09:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-11-29 00:09:26,766 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2023-11-29 00:09:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:09:26,767 INFO L225 Difference]: With dead ends: 211 [2023-11-29 00:09:26,767 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 00:09:26,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6029 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2114, Invalid=27298, Unknown=0, NotChecked=0, Total=29412 [2023-11-29 00:09:26,777 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 409 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 7653 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 7712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 7653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:09:26,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 2022 Invalid, 7712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 7653 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 00:09:26,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 00:09:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 00:09:26,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:09:26,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2023-11-29 00:09:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:09:26,779 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:09:26,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:09:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:09:26,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 00:09:26,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:09:26,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:09:26,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:09:26,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 00:09:26,986 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 604) no Hoare annotation was computed. [2023-11-29 00:09:26,986 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 622) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L415(lines 408 481) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 628) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 453) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 485) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L374(lines 374 503) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 473) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 509) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 599) no Hoare annotation was computed. [2023-11-29 00:09:26,987 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 136 636) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 587) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 605) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L210(lines 210 611) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L433(lines 433 454) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 486) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L425(lines 425 475) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 492) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 582) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L277(lines 277 570) no Hoare annotation was computed. [2023-11-29 00:09:26,988 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 588) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 594) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 565) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 553) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 571) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 577) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 548) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 536) no Hoare annotation was computed. [2023-11-29 00:09:26,989 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 554) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 635) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 560) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 531) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 519) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 537) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 543) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 633) no Hoare annotation was computed. [2023-11-29 00:09:26,990 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 514) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 621) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L381(lines 381 502) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 520) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 526) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 616) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 480) no Hoare annotation was computed. [2023-11-29 00:09:26,991 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 497) no Hoare annotation was computed. [2023-11-29 00:09:26,994 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-29 00:09:26,996 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:09:26,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:09:26 BoogieIcfgContainer [2023-11-29 00:09:26,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:09:27,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:09:27,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:09:27,000 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:09:27,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:07:32" (3/4) ... [2023-11-29 00:09:27,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:09:27,017 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2023-11-29 00:09:27,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 00:09:27,021 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 00:09:27,022 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 00:09:27,024 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:09:27,280 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:09:27,281 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:09:27,281 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:09:27,282 INFO L158 Benchmark]: Toolchain (without parser) took 116647.30ms. Allocated memory was 144.7MB in the beginning and 415.2MB in the end (delta: 270.5MB). Free memory was 109.4MB in the beginning and 208.7MB in the end (delta: -99.2MB). Peak memory consumption was 171.0MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,282 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:09:27,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.89ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 87.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.58ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 82.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,283 INFO L158 Benchmark]: Boogie Preprocessor took 89.80ms. Allocated memory is still 144.7MB. Free memory was 82.8MB in the beginning and 75.6MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,284 INFO L158 Benchmark]: RCFGBuilder took 917.77ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 75.6MB in the beginning and 139.2MB in the end (delta: -63.6MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,284 INFO L158 Benchmark]: TraceAbstraction took 114896.03ms. Allocated memory was 174.1MB in the beginning and 415.2MB in the end (delta: 241.2MB). Free memory was 138.1MB in the beginning and 228.6MB in the end (delta: -90.4MB). Peak memory consumption was 151.8MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,285 INFO L158 Benchmark]: Witness Printer took 281.34ms. Allocated memory is still 415.2MB. Free memory was 228.6MB in the beginning and 208.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:09:27,287 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.89ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 87.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.58ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 82.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.80ms. Allocated memory is still 144.7MB. Free memory was 82.8MB in the beginning and 75.6MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 917.77ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 75.6MB in the beginning and 139.2MB in the end (delta: -63.6MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 114896.03ms. Allocated memory was 174.1MB in the beginning and 415.2MB in the end (delta: 241.2MB). Free memory was 138.1MB in the beginning and 228.6MB in the end (delta: -90.4MB). Peak memory consumption was 151.8MB. Max. memory is 16.1GB. * Witness Printer took 281.34ms. Allocated memory is still 415.2MB. Free memory was 228.6MB in the beginning and 208.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. 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 - PositiveResult [Line: 467]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 114.8s, OverallIterations: 4, TraceHistogramMax: 34, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 92.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1130 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1130 mSDsluCounter, 3265 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3144 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10830 IncrementalHoareTripleChecker+Invalid, 11018 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 121 mSDtfsCounter, 10830 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1011 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7374 ImplicationChecksByTransitivity, 92.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=3, InterpolantAutomatonStates: 200, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 771 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1125 ConstructedInterpolants, 197 QuantifiedInterpolants, 14791 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2957 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 5219/9513 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 00:09:27,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f4d9dfa-8507-4caf-9e92-0cd50f1cc54e/bin/uautomizer-verify-BQ2R08f2Ya/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 Writing output log to file Ultimate.log Result: TRUE