./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i --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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:50:41,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:50:41,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:50:41,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:50:41,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:50:41,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:50:41,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:50:41,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:50:41,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:50:41,124 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:50:41,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:50:41,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:50:41,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:50:41,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:50:41,126 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:50:41,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:50:41,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:50:41,128 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:50:41,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:50:41,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:50:41,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:50:41,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:50:41,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:50:41,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:50:41,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:50:41,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:50:41,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:50:41,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:50:41,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:50:41,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:50:41,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:50:41,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:41,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:50:41,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:50:41,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:50:41,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:50:41,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:50:41,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:50:41,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:50:41,146 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:50:41,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:50:41,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:50:41,147 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a [2023-11-29 01:50:41,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:50:41,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:50:41,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:50:41,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:50:41,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:50:41,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:44,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:50:44,297 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:50:44,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:44,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/bffd6add2/55181cb248ca40f980fe7d2315c28466/FLAGa7b9cbd39 [2023-11-29 01:50:44,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/bffd6add2/55181cb248ca40f980fe7d2315c28466 [2023-11-29 01:50:44,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:50:44,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:50:44,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:44,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:50:44,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:50:44,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689669a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44, skipping insertion in model container [2023-11-29 01:50:44,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:50:44,483 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-29 01:50:44,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:44,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:50:44,549 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-29 01:50:44,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:44,588 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:50:44,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44 WrapperNode [2023-11-29 01:50:44,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:44,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:44,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:50:44,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:50:44,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,638 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-29 01:50:44,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:44,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:50:44,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:50:44,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:50:44,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,670 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]. [2023-11-29 01:50:44,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:50:44,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:50:44,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:50:44,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:50:44,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (1/1) ... [2023-11-29 01:50:44,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:44,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:50:44,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:50:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:50:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:50:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:50:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:50:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:50:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:50:44,835 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:50:44,837 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:50:45,047 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:50:45,085 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:50:45,085 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:50:45,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:45 BoogieIcfgContainer [2023-11-29 01:50:45,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:50:45,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:50:45,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:50:45,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:50:45,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:50:44" (1/3) ... [2023-11-29 01:50:45,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2652334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:45, skipping insertion in model container [2023-11-29 01:50:45,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:44" (2/3) ... [2023-11-29 01:50:45,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2652334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:45, skipping insertion in model container [2023-11-29 01:50:45,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:45" (3/3) ... [2023-11-29 01:50:45,114 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:45,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:50:45,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:50:45,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:50:45,182 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;@56524604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:50:45,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:50:45,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 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) [2023-11-29 01:50:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:50:45,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:45,198 INFO L195 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] [2023-11-29 01:50:45,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:45,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1214595298, now seen corresponding path program 1 times [2023-11-29 01:50:45,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:45,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092952997] [2023-11-29 01:50:45,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:50:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 01:50:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:50:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:50:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 01:50:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:50:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:50:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:50:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:50:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 01:50:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 01:50:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:50:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:50:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 01:50:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 01:50:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:50:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 01:50:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 01:50:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-29 01:50:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:46,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092952997] [2023-11-29 01:50:46,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092952997] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:50:46,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276995886] [2023-11-29 01:50:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:46,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:50:46,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:46,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:50:46,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:50:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:46,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:50:46,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:50:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-29 01:50:46,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:50:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-29 01:50:46,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276995886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:50:46,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:50:46,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-29 01:50:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204890855] [2023-11-29 01:50:46,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:50:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:50:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:50:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:50:46,725 INFO L87 Difference]: Start difference. First operand has 46 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 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 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 01:50:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:47,810 INFO L93 Difference]: Finished difference Result 191 states and 344 transitions. [2023-11-29 01:50:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:50:47,813 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 109 [2023-11-29 01:50:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:50:47,823 INFO L225 Difference]: With dead ends: 191 [2023-11-29 01:50:47,823 INFO L226 Difference]: Without dead ends: 146 [2023-11-29 01:50:47,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:50:47,831 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 197 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:50:47,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 226 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:50:47,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-29 01:50:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2023-11-29 01:50:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 53 states have (on average 1.150943396226415) internal successors, (61), 54 states have internal predecessors, (61), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 01:50:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 133 transitions. [2023-11-29 01:50:47,898 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 133 transitions. Word has length 109 [2023-11-29 01:50:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:50:47,899 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 133 transitions. [2023-11-29 01:50:47,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 01:50:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 133 transitions. [2023-11-29 01:50:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:50:47,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:47,903 INFO L195 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] [2023-11-29 01:50:47,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:50:48,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:50:48,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:48,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash -560412064, now seen corresponding path program 1 times [2023-11-29 01:50:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:48,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701347967] [2023-11-29 01:50:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:48,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:48,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:48,260 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:50:48,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:50:48,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:50:48,266 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 01:50:48,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:50:48,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:50:48 BoogieIcfgContainer [2023-11-29 01:50:48,337 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:50:48,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:50:48,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:50:48,338 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:50:48,339 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:45" (3/4) ... [2023-11-29 01:50:48,341 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:50:48,342 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:50:48,343 INFO L158 Benchmark]: Toolchain (without parser) took 4022.89ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 86.6MB in the beginning and 120.6MB in the end (delta: -33.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:50:48,343 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:50:48,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.15ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 74.2MB in the end (delta: 12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:50:48,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.24ms. Allocated memory is still 123.7MB. Free memory was 74.2MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:50:48,345 INFO L158 Benchmark]: Boogie Preprocessor took 49.92ms. Allocated memory is still 123.7MB. Free memory was 71.1MB in the beginning and 66.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:50:48,345 INFO L158 Benchmark]: RCFGBuilder took 396.23ms. Allocated memory is still 123.7MB. Free memory was 66.3MB in the beginning and 47.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:50:48,346 INFO L158 Benchmark]: TraceAbstraction took 3229.89ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 95.1MB in the beginning and 121.6MB in the end (delta: -26.6MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2023-11-29 01:50:48,347 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 153.1MB. Free memory was 121.6MB in the beginning and 120.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:50:48,349 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 123.7MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.15ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 74.2MB in the end (delta: 12.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.24ms. Allocated memory is still 123.7MB. Free memory was 74.2MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.92ms. Allocated memory is still 123.7MB. Free memory was 71.1MB in the beginning and 66.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 396.23ms. Allocated memory is still 123.7MB. Free memory was 66.3MB in the beginning and 47.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3229.89ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 95.1MB in the beginning and 121.6MB in the end (delta: -26.6MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 153.1MB. Free memory was 121.6MB in the beginning and 120.6MB in the end (delta: 1.0MB). 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 92. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -4; [L23] double var_1_2 = 255.6; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 8; [L29] double var_1_10 = 255.2; [L30] unsigned char var_1_11 = 64; [L31] unsigned char var_1_12 = 100; [L32] unsigned char var_1_13 = 32; [L33] unsigned char var_1_14 = 64; [L34] unsigned char var_1_15 = 0; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L62] var_1_6 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L66] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L68] var_1_8 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_9=8] [L69] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_9=8] [L70] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L70] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L71] var_1_10 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L72] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L74] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L77] RET assume_abort_if_not(var_1_12 >= 64) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L81] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L81] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L84] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L84] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L87] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L87] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L100] RET updateVariables() [L101] CALL step() [L38] COND TRUE (- var_1_2) <= var_1_10 [L39] var_1_9 = ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L43] COND TRUE var_1_2 < 63.75 [L44] var_1_1 = (10 - var_1_9) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L48] signed long int stepLocal_0 = (var_1_9 / -256) * 32; VAL [isInitial=1, stepLocal_0=0, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L49] COND FALSE !(var_1_9 > stepLocal_0) [L56] var_1_5 = var_1_7 VAL [isInitial=1, stepLocal_0=0, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((var_1_2 < 63.75) ? (var_1_1 == ((signed short int) (10 - var_1_9))) : (var_1_1 == ((signed short int) (4 + var_1_9)))) && ((var_1_9 > ((var_1_9 / -256) * 32)) ? (var_1_6 ? (var_1_5 == ((unsigned char) (! (var_1_7 && (! var_1_8))))) : (var_1_5 == ((unsigned char) var_1_7))) : (var_1_5 == ((unsigned char) var_1_7)))) && (((- var_1_2) <= var_1_10) ? (var_1_9 == ((unsigned char) ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))))) : (var_1_9 == ((unsigned char) var_1_12))) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 203 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 418 IncrementalHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 203 mSolverCounterUnsat, 71 mSDtfsCounter, 418 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=1, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 51 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 1077 SizeOfPredicates, 5 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 1773/1836 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:50:48,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:50:50,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:50:50,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:50:50,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:50:50,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:50:50,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:50:50,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:50:50,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:50:50,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:50:50,417 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:50:50,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:50:50,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:50:50,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:50:50,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:50:50,420 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:50:50,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:50:50,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:50:50,422 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:50:50,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:50:50,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:50:50,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:50:50,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:50:50,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:50:50,424 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:50:50,425 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:50:50,425 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:50:50,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:50:50,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:50:50,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:50:50,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:50:50,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:50:50,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:50:50,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:50:50,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:50,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:50:50,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:50:50,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:50:50,429 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:50:50,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:50:50,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:50:50,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:50:50,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:50:50,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:50:50,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:50:50,431 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:50:50,431 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b49dec271465b2754e36573ebd59f8c437d77cb6b6af58205c53363f2448e6a [2023-11-29 01:50:50,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:50:50,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:50:50,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:50:50,760 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:50:50,760 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:50:50,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:53,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:50:53,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:50:53,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:53,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/4273924ba/ae16947bb1054b529ac1dc8311139d33/FLAG80690ac0c [2023-11-29 01:50:53,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/data/4273924ba/ae16947bb1054b529ac1dc8311139d33 [2023-11-29 01:50:53,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:50:53,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:50:53,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:53,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:50:53,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:50:53,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:53" (1/1) ... [2023-11-29 01:50:53,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352a19b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:53, skipping insertion in model container [2023-11-29 01:50:53,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:53" (1/1) ... [2023-11-29 01:50:53,786 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:50:53,926 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-29 01:50:53,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:53,982 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:50:53,995 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_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-52.i[915,928] [2023-11-29 01:50:54,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:54,036 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:50:54,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54 WrapperNode [2023-11-29 01:50:54,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:54,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:54,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:50:54,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:50:54,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,083 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-29 01:50:54,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:54,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:50:54,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:50:54,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:50:54,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,113 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]. [2023-11-29 01:50:54,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:50:54,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:50:54,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:50:54,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:50:54,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (1/1) ... [2023-11-29 01:50:54,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:54,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:54,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:50:54,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:50:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:50:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:50:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:50:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:50:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:50:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:50:54,275 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:50:54,277 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:50:54,522 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:50:54,565 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:50:54,566 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:50:54,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:54 BoogieIcfgContainer [2023-11-29 01:50:54,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:50:54,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:50:54,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:50:54,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:50:54,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:50:53" (1/3) ... [2023-11-29 01:50:54,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546702c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:54, skipping insertion in model container [2023-11-29 01:50:54,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:54" (2/3) ... [2023-11-29 01:50:54,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546702c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:54, skipping insertion in model container [2023-11-29 01:50:54,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:54" (3/3) ... [2023-11-29 01:50:54,575 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i [2023-11-29 01:50:54,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:50:54,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:50:54,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:50:54,652 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;@1ebc2d9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:50:54,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:50:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 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) [2023-11-29 01:50:54,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:50:54,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:54,670 INFO L195 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] [2023-11-29 01:50:54,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:54,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1214595298, now seen corresponding path program 1 times [2023-11-29 01:50:54,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:50:54,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808321261] [2023-11-29 01:50:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:54,687 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 [2023-11-29 01:50:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:50:54,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:50:54,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:50:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:54,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:50:54,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:50:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 01:50:55,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:50:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-29 01:50:55,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:50:55,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808321261] [2023-11-29 01:50:55,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808321261] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:50:55,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:50:55,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-11-29 01:50:55,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963633849] [2023-11-29 01:50:55,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:50:55,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:50:55,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:50:55,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:50:55,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:50:55,614 INFO L87 Difference]: Start difference. First operand has 46 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 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 2.8) internal successors, (42), 14 states have internal predecessors, (42), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 01:50:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:57,006 INFO L93 Difference]: Finished difference Result 197 states and 349 transitions. [2023-11-29 01:50:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 01:50:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 109 [2023-11-29 01:50:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:50:57,018 INFO L225 Difference]: With dead ends: 197 [2023-11-29 01:50:57,019 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 01:50:57,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=390, Invalid=1170, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 01:50:57,026 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:50:57,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 216 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:50:57,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 01:50:57,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 55. [2023-11-29 01:50:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:50:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-11-29 01:50:57,083 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 109 [2023-11-29 01:50:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:50:57,085 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-29 01:50:57,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 01:50:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-11-29 01:50:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:50:57,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:57,088 INFO L195 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] [2023-11-29 01:50:57,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:50:57,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:50:57,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:57,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash -560412064, now seen corresponding path program 1 times [2023-11-29 01:50:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:50:57,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894583903] [2023-11-29 01:50:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:57,292 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 [2023-11-29 01:50:57,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:50:57,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:50:57,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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)] Waiting until timeout for monitored process [2023-11-29 01:50:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:57,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 01:50:57,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:51:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 444 proven. 45 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 01:51:27,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:52:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:52:11,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:52:11,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894583903] [2023-11-29 01:52:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894583903] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:52:11,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:52:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [28] total 33 [2023-11-29 01:52:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232591180] [2023-11-29 01:52:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:52:11,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:52:11,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:52:11,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:52:11,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 01:52:11,421 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-11-29 01:52:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:52:13,182 INFO L93 Difference]: Finished difference Result 73 states and 95 transitions. [2023-11-29 01:52:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:52:13,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 109 [2023-11-29 01:52:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:52:13,186 INFO L225 Difference]: With dead ends: 73 [2023-11-29 01:52:13,186 INFO L226 Difference]: Without dead ends: 71 [2023-11-29 01:52:13,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:52:13,188 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 33 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:52:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 224 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:52:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-29 01:52:13,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2023-11-29 01:52:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:52:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-11-29 01:52:13,201 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 109 [2023-11-29 01:52:13,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:52:13,202 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-11-29 01:52:13,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-11-29 01:52:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-11-29 01:52:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:52:13,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:52:13,205 INFO L195 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] [2023-11-29 01:52:13,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 01:52:13,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:52:13,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:52:13,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:52:13,407 INFO L85 PathProgramCache]: Analyzing trace with hash -503153762, now seen corresponding path program 1 times [2023-11-29 01:52:13,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:52:13,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075587378] [2023-11-29 01:52:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:52:13,408 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 [2023-11-29 01:52:13,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:52:13,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:52:13,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:52:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:52:13,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 01:52:13,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:52:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 444 proven. 45 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 01:52:42,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:53:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:53:25,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:53:25,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075587378] [2023-11-29 01:53:25,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075587378] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:53:25,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:53:25,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [28] total 33 [2023-11-29 01:53:25,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82867375] [2023-11-29 01:53:25,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:53:25,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:53:25,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:53:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:53:25,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 01:53:25,586 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-11-29 01:53:27,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:53:27,238 INFO L93 Difference]: Finished difference Result 74 states and 96 transitions. [2023-11-29 01:53:27,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:53:27,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 109 [2023-11-29 01:53:27,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:53:27,241 INFO L225 Difference]: With dead ends: 74 [2023-11-29 01:53:27,241 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 01:53:27,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:53:27,243 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 25 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:53:27,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 202 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:53:27,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 01:53:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 57. [2023-11-29 01:53:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:53:27,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2023-11-29 01:53:27,256 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 109 [2023-11-29 01:53:27,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:53:27,257 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2023-11-29 01:53:27,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2023-11-29 01:53:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2023-11-29 01:53:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:53:27,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:53:27,260 INFO L195 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] [2023-11-29 01:53:27,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:53:27,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:53:27,461 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:53:27,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:27,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1011782609, now seen corresponding path program 1 times [2023-11-29 01:53:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:53:27,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123148112] [2023-11-29 01:53:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:27,462 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 [2023-11-29 01:53:27,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:53:27,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:53:27,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (5)] Waiting until timeout for monitored process [2023-11-29 01:53:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:53:27,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:53:27,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:53:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 01:53:50,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:55:02,905 WARN L293 SmtUtils]: Spent 11.24s on a formula simplification. DAG size of input: 212 DAG size of output: 220 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:55:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:55:12,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:55:12,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123148112] [2023-11-29 01:55:12,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123148112] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:55:12,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:55:12,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-11-29 01:55:12,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990715082] [2023-11-29 01:55:12,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:55:12,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:55:12,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:55:12,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:55:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:55:12,960 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-11-29 01:55:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:55:21,097 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2023-11-29 01:55:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:55:21,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 110 [2023-11-29 01:55:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:55:21,100 INFO L225 Difference]: With dead ends: 83 [2023-11-29 01:55:21,100 INFO L226 Difference]: Without dead ends: 81 [2023-11-29 01:55:21,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=71, Invalid=270, Unknown=1, NotChecked=0, Total=342 [2023-11-29 01:55:21,102 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 23 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:55:21,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 216 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:55:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-29 01:55:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 60. [2023-11-29 01:55:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:55:21,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2023-11-29 01:55:21,115 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 110 [2023-11-29 01:55:21,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:55:21,115 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2023-11-29 01:55:21,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-11-29 01:55:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-29 01:55:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:55:21,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:55:21,117 INFO L195 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] [2023-11-29 01:55:21,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (5)] Ended with exit code 0 [2023-11-29 01:55:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:55:21,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:55:21,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:55:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1011842191, now seen corresponding path program 1 times [2023-11-29 01:55:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:55:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784910164] [2023-11-29 01:55:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:21,319 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 [2023-11-29 01:55:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:55:21,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:55:21,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (6)] Waiting until timeout for monitored process [2023-11-29 01:55:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:55:21,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:55:21,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:55:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 01:55:46,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:01,490 WARN L293 SmtUtils]: Spent 12.74s on a formula simplification. DAG size of input: 219 DAG size of output: 227 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:57:19,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:57:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784910164] [2023-11-29 01:57:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784910164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1446699055] [2023-11-29 01:57:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:19,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:57:19,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:57:19,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:57:19,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-29 01:57:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:19,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:57:19,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:57:34,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:34,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1446699055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:34,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:34,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2023-11-29 01:57:34,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618138945] [2023-11-29 01:57:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:34,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:34,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:57:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:34,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:57:34,254 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 01:57:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:34,882 INFO L93 Difference]: Finished difference Result 77 states and 99 transitions. [2023-11-29 01:57:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:57:34,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 110 [2023-11-29 01:57:34,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:34,884 INFO L225 Difference]: With dead ends: 77 [2023-11-29 01:57:34,884 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 01:57:34,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:57:34,885 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 29 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:34,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 176 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 01:57:34,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2023-11-29 01:57:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:57:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2023-11-29 01:57:34,895 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 110 [2023-11-29 01:57:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:34,895 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2023-11-29 01:57:34,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 01:57:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-29 01:57:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:57:34,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:34,897 INFO L195 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] [2023-11-29 01:57:34,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-29 01:57:35,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (6)] Ended with exit code 0 [2023-11-29 01:57:35,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:57:35,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:57:35,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash 763224753, now seen corresponding path program 1 times [2023-11-29 01:57:35,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:57:35,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792428748] [2023-11-29 01:57:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:35,299 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 [2023-11-29 01:57:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:57:35,300 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:57:35,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Waiting until timeout for monitored process [2023-11-29 01:57:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:35,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:57:35,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 01:57:59,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:19,962 WARN L293 SmtUtils]: Spent 12.37s on a formula simplification. DAG size of input: 301 DAG size of output: 313 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:59:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:59:31,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:59:31,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792428748] [2023-11-29 01:59:31,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792428748] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:31,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:31,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-11-29 01:59:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869803103] [2023-11-29 01:59:31,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:31,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:59:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:59:31,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:59:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:59:31,355 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-11-29 01:59:38,727 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 316 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:59:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:42,478 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions. [2023-11-29 01:59:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:59:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 110 [2023-11-29 01:59:42,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:42,483 INFO L225 Difference]: With dead ends: 84 [2023-11-29 01:59:42,483 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 01:59:42,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:59:42,484 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 22 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:42,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 214 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 01:59:42,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 01:59:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2023-11-29 01:59:42,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:59:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 83 transitions. [2023-11-29 01:59:42,500 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 83 transitions. Word has length 110 [2023-11-29 01:59:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:42,500 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 83 transitions. [2023-11-29 01:59:42,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-11-29 01:59:42,501 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2023-11-29 01:59:42,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:59:42,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:42,502 INFO L195 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] [2023-11-29 01:59:42,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Ended with exit code 0 [2023-11-29 01:59:42,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:59:42,703 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:59:42,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 763165171, now seen corresponding path program 1 times [2023-11-29 01:59:42,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:59:42,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454719133] [2023-11-29 01:59:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:42,704 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 [2023-11-29 01:59:42,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:59:42,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:59:42,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Waiting until timeout for monitored process [2023-11-29 01:59:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:42,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:59:42,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:00:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 02:00:07,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:21,245 WARN L293 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 219 DAG size of output: 227 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 02:01:37,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:01:37,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454719133] [2023-11-29 02:01:37,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454719133] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:37,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [279855828] [2023-11-29 02:01:37,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:37,968 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:01:37,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:01:37,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:01:37,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-29 02:01:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:38,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:01:38,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 02:01:52,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:01:52,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [279855828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:01:52,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:52,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2023-11-29 02:01:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170261658] [2023-11-29 02:01:52,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:01:52,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:01:52,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:01:52,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:01:52,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:01:52,348 INFO L87 Difference]: Start difference. First operand 61 states and 83 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:01:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:53,093 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2023-11-29 02:01:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:01:53,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 110 [2023-11-29 02:01:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:53,096 INFO L225 Difference]: With dead ends: 75 [2023-11-29 02:01:53,096 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 02:01:53,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:01:53,097 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 23 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:53,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 227 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:01:53,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 02:01:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 58. [2023-11-29 02:01:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:01:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-29 02:01:53,112 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 110 [2023-11-29 02:01:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:53,113 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-29 02:01:53,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:01:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-11-29 02:01:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:01:53,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:53,115 INFO L195 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] [2023-11-29 02:01:53,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Ended with exit code 0 [2023-11-29 02:01:53,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-11-29 02:01:53,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 02:01:53,516 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:01:53,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:53,516 INFO L85 PathProgramCache]: Analyzing trace with hash -202435983, now seen corresponding path program 1 times [2023-11-29 02:01:53,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:01:53,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292582707] [2023-11-29 02:01:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:53,517 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 [2023-11-29 02:01:53,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:01:53,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 02:01:53,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (11)] Waiting until timeout for monitored process [2023-11-29 02:01:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:53,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 02:01:53,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:02:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 444 proven. 45 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 02:02:10,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:03:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 02:03:03,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:03:03,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292582707] [2023-11-29 02:03:03,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292582707] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:03:03,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:03:03,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29] total 35 [2023-11-29 02:03:03,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831038506] [2023-11-29 02:03:03,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:03:03,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:03:03,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:03:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:03:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=948, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 02:03:03,283 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:03:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:05,195 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2023-11-29 02:03:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:03:05,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 110 [2023-11-29 02:03:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:05,197 INFO L225 Difference]: With dead ends: 85 [2023-11-29 02:03:05,197 INFO L226 Difference]: Without dead ends: 83 [2023-11-29 02:03:05,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:03:05,199 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 36 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:05,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 222 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:03:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-29 02:03:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 61. [2023-11-29 02:03:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:03:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2023-11-29 02:03:05,214 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 110 [2023-11-29 02:03:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:05,215 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2023-11-29 02:03:05,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:03:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2023-11-29 02:03:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:03:05,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:05,217 INFO L195 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] [2023-11-29 02:03:05,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (11)] Ended with exit code 0 [2023-11-29 02:03:05,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 02:03:05,418 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:03:05,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash -202495565, now seen corresponding path program 1 times [2023-11-29 02:03:05,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:03:05,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187666870] [2023-11-29 02:03:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:05,419 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 [2023-11-29 02:03:05,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:03:05,420 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 02:03:05,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (12)] Waiting until timeout for monitored process [2023-11-29 02:03:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:05,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 02:03:05,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 444 proven. 45 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 02:03:24,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 02:04:20,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:04:20,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187666870] [2023-11-29 02:04:20,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187666870] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:20,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:20,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29] total 35 [2023-11-29 02:04:20,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399899262] [2023-11-29 02:04:20,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:04:20,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:04:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:04:20,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:04:20,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 02:04:20,983 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:04:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:23,639 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2023-11-29 02:04:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:04:23,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 110 [2023-11-29 02:04:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:23,641 INFO L225 Difference]: With dead ends: 77 [2023-11-29 02:04:23,641 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 02:04:23,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=288, Invalid=1352, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:04:23,643 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 31 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:23,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 242 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:04:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 02:04:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2023-11-29 02:04:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:04:23,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-29 02:04:23,658 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 110 [2023-11-29 02:04:23,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:23,658 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-29 02:04:23,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:04:23,659 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-29 02:04:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:04:23,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:23,660 INFO L195 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] [2023-11-29 02:04:23,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (12)] Ended with exit code 0 [2023-11-29 02:04:23,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 02:04:23,862 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:04:23,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:23,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1572571379, now seen corresponding path program 1 times [2023-11-29 02:04:23,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:04:23,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944556490] [2023-11-29 02:04:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:23,863 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 [2023-11-29 02:04:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:04:23,864 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 02:04:23,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Waiting until timeout for monitored process [2023-11-29 02:04:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:24,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 02:04:24,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 444 proven. 45 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 02:04:40,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 02:05:28,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:05:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944556490] [2023-11-29 02:05:28,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944556490] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:05:28,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:05:28,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29] total 35 [2023-11-29 02:05:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081013211] [2023-11-29 02:05:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:28,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:05:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:05:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:05:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=948, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 02:05:28,413 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:05:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:30,697 INFO L93 Difference]: Finished difference Result 81 states and 104 transitions. [2023-11-29 02:05:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:05:30,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 110 [2023-11-29 02:05:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:30,699 INFO L225 Difference]: With dead ends: 81 [2023-11-29 02:05:30,700 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 02:05:30,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:05:30,701 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 27 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:30,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 230 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:05:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 02:05:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2023-11-29 02:05:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 02:05:30,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2023-11-29 02:05:30,715 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 110 [2023-11-29 02:05:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:30,715 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2023-11-29 02:05:30,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2023-11-29 02:05:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-29 02:05:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:05:30,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:30,717 INFO L195 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] [2023-11-29 02:05:30,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Ended with exit code 0 [2023-11-29 02:05:30,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 02:05:30,918 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:30,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1572511797, now seen corresponding path program 1 times [2023-11-29 02:05:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:05:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239335314] [2023-11-29 02:05:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:30,919 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 [2023-11-29 02:05:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:05:30,919 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 02:05:30,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ebbdd6-d5a9-488f-8294-5f85e4f66e46/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Waiting until timeout for monitored process [2023-11-29 02:05:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:31,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 02:05:31,357 INFO L285 TraceCheckSpWp]: Computing forward predicates...