./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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_576b3eb4-a155-46e7-959a-8c52646b453e/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 cd3d3b06025bd7756a6426892295962965c3454eb8c1b0e9922b36e8366261d1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:51:40,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:51:40,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:51:40,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:51:40,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:51:40,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:51:40,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:51:40,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:51:40,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:51:40,602 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:51:40,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:51:40,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:51:40,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:51:40,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:51:40,605 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:51:40,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:51:40,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:51:40,607 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:51:40,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:51:40,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:51:40,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:51:40,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:51:40,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:51:40,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:51:40,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:51:40,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:51:40,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:51:40,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:51:40,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:51:40,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:51:40,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:51:40,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:51:40,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:51:40,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:51:40,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:51:40,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:51:40,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:51:40,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:51:40,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:51:40,616 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:51:40,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:51:40,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:51:40,617 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_576b3eb4-a155-46e7-959a-8c52646b453e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd3d3b06025bd7756a6426892295962965c3454eb8c1b0e9922b36e8366261d1 [2023-11-29 04:51:40,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:51:40,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:51:40,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:51:40,871 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:51:40,871 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:51:40,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:43,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:51:43,870 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:51:43,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:43,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/792aacf2e/0c890e6d8f384c39a80da89d8e4b0d72/FLAG5f4a2238c [2023-11-29 04:51:43,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/792aacf2e/0c890e6d8f384c39a80da89d8e4b0d72 [2023-11-29 04:51:43,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:51:43,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:51:43,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:51:43,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:51:43,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:51:43,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:51:43" (1/1) ... [2023-11-29 04:51:43,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302af32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:43, skipping insertion in model container [2023-11-29 04:51:43,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:51:43" (1/1) ... [2023-11-29 04:51:43,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:51:44,055 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_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i[915,928] [2023-11-29 04:51:44,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:51:44,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:51:44,113 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_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i[915,928] [2023-11-29 04:51:44,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:51:44,149 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:51:44,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44 WrapperNode [2023-11-29 04:51:44,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:51:44,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:51:44,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:51:44,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:51:44,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,204 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-29 04:51:44,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:51:44,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:51:44,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:51:44,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:51:44,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,239 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 04:51:44,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:51:44,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:51:44,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:51:44,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:51:44,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (1/1) ... [2023-11-29 04:51:44,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:51:44,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:51:44,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:51:44,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:51:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:51:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:51:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:51:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:51:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:51:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:51:44,408 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:51:44,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:51:44,663 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:51:44,690 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:51:44,690 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:51:44,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:51:44 BoogieIcfgContainer [2023-11-29 04:51:44,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:51:44,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:51:44,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:51:44,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:51:44,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:51:43" (1/3) ... [2023-11-29 04:51:44,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f84dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:51:44, skipping insertion in model container [2023-11-29 04:51:44,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:44" (2/3) ... [2023-11-29 04:51:44,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f84dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:51:44, skipping insertion in model container [2023-11-29 04:51:44,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:51:44" (3/3) ... [2023-11-29 04:51:44,699 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:44,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:51:44,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:51:44,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:51:44,763 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;@78fd3159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:51:44,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:51:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 04:51:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:51:44,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:44,777 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:44,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:44,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 207740315, now seen corresponding path program 1 times [2023-11-29 04:51:44,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:51:44,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518878066] [2023-11-29 04:51:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:44,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:51:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:51:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:51:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:51:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 04:51:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 04:51:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 04:51:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:51:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 04:51:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 04:51:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:51:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:51:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:51:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:51:45,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:51:45,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518878066] [2023-11-29 04:51:45,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518878066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:51:45,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:51:45,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:51:45,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105235908] [2023-11-29 04:51:45,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:51:45,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:51:45,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:51:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:51:45,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:51:45,124 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:51:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:51:45,160 INFO L93 Difference]: Finished difference Result 89 states and 150 transitions. [2023-11-29 04:51:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:51:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2023-11-29 04:51:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:51:45,169 INFO L225 Difference]: With dead ends: 89 [2023-11-29 04:51:45,169 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 04:51:45,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:51:45,176 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:51:45,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:51:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 04:51:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-29 04:51:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 04:51:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-29 04:51:45,215 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 79 [2023-11-29 04:51:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:51:45,215 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-29 04:51:45,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:51:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-29 04:51:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:51:45,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:45,220 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:45,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:51:45,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:45,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash 143202527, now seen corresponding path program 1 times [2023-11-29 04:51:45,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:51:45,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383281143] [2023-11-29 04:51:45,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:45,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:51:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:51:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:51:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:51:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 04:51:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 04:51:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 04:51:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:51:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 04:51:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 04:51:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:51:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:51:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:51:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 04:51:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:51:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383281143] [2023-11-29 04:51:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383281143] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:51:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516205090] [2023-11-29 04:51:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:45,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:51:45,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:51:45,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:51:45,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:51:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:45,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:51:45,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:51:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:51:45,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:51:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 04:51:46,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516205090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:51:46,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:51:46,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-29 04:51:46,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079008380] [2023-11-29 04:51:46,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:51:46,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:51:46,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:51:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:51:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:51:46,076 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 04:51:46,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:51:46,287 INFO L93 Difference]: Finished difference Result 106 states and 153 transitions. [2023-11-29 04:51:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:51:46,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 79 [2023-11-29 04:51:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:51:46,290 INFO L225 Difference]: With dead ends: 106 [2023-11-29 04:51:46,290 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 04:51:46,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:51:46,292 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 71 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:51:46,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 131 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:51:46,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 04:51:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-11-29 04:51:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 38 states have internal predecessors, (47), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:51:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 83 transitions. [2023-11-29 04:51:46,309 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 83 transitions. Word has length 79 [2023-11-29 04:51:46,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:51:46,310 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 83 transitions. [2023-11-29 04:51:46,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 04:51:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 83 transitions. [2023-11-29 04:51:46,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:51:46,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:46,312 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:46,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:51:46,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:51:46,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:46,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1173185733, now seen corresponding path program 1 times [2023-11-29 04:51:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:51:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156151872] [2023-11-29 04:51:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:46,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:51:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:51:46,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:51:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:51:46,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:51:46,643 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:51:46,645 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:51:46,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:51:46,650 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 04:51:46,653 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:51:46,693 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 04:51:46,694 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-29 04:51:46,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:51:46 BoogieIcfgContainer [2023-11-29 04:51:46,708 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:51:46,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:51:46,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:51:46,709 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:51:46,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:51:44" (3/4) ... [2023-11-29 04:51:46,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:51:46,712 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:51:46,713 INFO L158 Benchmark]: Toolchain (without parser) took 2821.03ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 103.8MB in the beginning and 103.4MB in the end (delta: 383.5kB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-29 04:51:46,713 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:51:46,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.13ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 91.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:51:46,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.42ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 88.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:51:46,715 INFO L158 Benchmark]: Boogie Preprocessor took 55.01ms. Allocated memory is still 151.0MB. Free memory was 88.3MB in the beginning and 84.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:51:46,715 INFO L158 Benchmark]: RCFGBuilder took 430.11ms. Allocated memory is still 151.0MB. Free memory was 84.4MB in the beginning and 66.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:51:46,715 INFO L158 Benchmark]: TraceAbstraction took 2014.49ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 65.2MB in the beginning and 104.4MB in the end (delta: -39.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:51:46,716 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 182.5MB. Free memory was 104.4MB in the beginning and 103.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:51:46,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.13ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 91.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.42ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 88.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.01ms. Allocated memory is still 151.0MB. Free memory was 88.3MB in the beginning and 84.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 430.11ms. Allocated memory is still 151.0MB. Free memory was 84.4MB in the beginning and 66.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2014.49ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 65.2MB in the beginning and 104.4MB in the end (delta: -39.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 182.5MB. Free memory was 104.4MB in the beginning and 103.4MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryFLOATComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] float var_1_2 = 128.6; [L24] float var_1_3 = 49.4; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 0; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 8; [L29] unsigned char var_1_8 = 128; [L30] unsigned char var_1_9 = 64; [L31] signed short int var_1_10 = 5; [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_float() [L62] 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=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L62] 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=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L63] var_1_3 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L64] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L65] var_1_4 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L66] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L67] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L67] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L68] var_1_5 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L69] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L70] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L70] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L71] var_1_6 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_6 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L72] RET assume_abort_if_not(var_1_6 >= 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L73] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L73] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L74] var_1_8 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_8 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L75] RET assume_abort_if_not(var_1_8 >= 127) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L76] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L76] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=64] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127] [L79] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=31] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=31] [L79] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=31] [L92] RET updateVariables() [L93] CALL step() [L35] COND TRUE var_1_2 < var_1_3 [L36] var_1_1 = (var_1_4 || var_1_5) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=31] [L44] COND TRUE \read(var_1_6) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=127, var_1_9=31] [L45] COND TRUE var_1_3 != 15.8f [L46] var_1_7 = (var_1_8 - var_1_9) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] [L53] EXPR (var_1_9 / 32) << var_1_8 VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] [L53] signed long int stepLocal_0 = (var_1_9 / 32) << var_1_8; [L54] COND FALSE !(! (var_1_3 < var_1_2)) VAL [isInitial=1, stepLocal_0=0, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] [L93] RET step() [L94] CALL, EXPR property() [L84] EXPR (((var_1_2 < var_1_3) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : ((var_1_3 >= var_1_2) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_6)))) && (var_1_6 ? ((var_1_3 != 15.8f) ? (var_1_7 == ((unsigned char) (var_1_8 - var_1_9))) : (var_1_7 == ((unsigned char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9)))))) : (var_1_7 == ((unsigned char) var_1_8)))) && ((! (var_1_3 < var_1_2)) ? ((((var_1_9 / 32) << var_1_8) == var_1_7) ? (var_1_10 == ((signed short int) (var_1_7 - var_1_8))) : 1) : 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] [L84-L85] return (((var_1_2 < var_1_3) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : ((var_1_3 >= var_1_2) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_6)))) && (var_1_6 ? ((var_1_3 != 15.8f) ? (var_1_7 == ((unsigned char) (var_1_8 - var_1_9))) : (var_1_7 == ((unsigned char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9)))))) : (var_1_7 == ((unsigned char) var_1_8)))) && ((! (var_1_3 < var_1_2)) ? ((((var_1_9 / 32) << var_1_8) == var_1_7) ? (var_1_10 == ((signed short int) (var_1_7 - var_1_8))) : 1) : 1) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=96, var_1_8=127, var_1_9=31] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 119 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 764 SizeOfPredicates, 3 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1011/1056 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 04:51:46,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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_576b3eb4-a155-46e7-959a-8c52646b453e/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 cd3d3b06025bd7756a6426892295962965c3454eb8c1b0e9922b36e8366261d1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:51:48,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:51:48,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:51:48,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:51:48,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:51:48,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:51:48,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:51:48,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:51:48,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:51:48,842 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:51:48,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:51:48,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:51:48,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:51:48,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:51:48,846 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:51:48,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:51:48,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:51:48,847 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:51:48,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:51:48,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:51:48,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:51:48,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:51:48,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:51:48,851 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:51:48,851 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:51:48,852 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:51:48,852 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:51:48,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:51:48,853 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:51:48,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:51:48,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:51:48,854 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:51:48,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:51:48,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:51:48,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:51:48,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:51:48,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:51:48,856 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:51:48,856 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:51:48,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:51:48,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:51:48,857 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:51:48,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:51:48,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:51:48,857 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:51:48,857 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_576b3eb4-a155-46e7-959a-8c52646b453e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd3d3b06025bd7756a6426892295962965c3454eb8c1b0e9922b36e8366261d1 [2023-11-29 04:51:49,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:51:49,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:51:49,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:51:49,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:51:49,165 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:51:49,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:52,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:51:52,254 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:51:52,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:52,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/b093aa87a/09d850fed3094848bc88b28685e329d7/FLAG53e268b77 [2023-11-29 04:51:52,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/data/b093aa87a/09d850fed3094848bc88b28685e329d7 [2023-11-29 04:51:52,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:51:52,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:51:52,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:51:52,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:51:52,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:51:52,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c99e536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52, skipping insertion in model container [2023-11-29 04:51:52,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,313 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:51:52,451 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_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i[915,928] [2023-11-29 04:51:52,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:51:52,501 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:51:52,514 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_576b3eb4-a155-46e7-959a-8c52646b453e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-61.i[915,928] [2023-11-29 04:51:52,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:51:52,550 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:51:52,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52 WrapperNode [2023-11-29 04:51:52,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:51:52,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:51:52,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:51:52,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:51:52,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,597 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-29 04:51:52,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:51:52,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:51:52,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:51:52,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:51:52,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,615 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,628 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 04:51:52,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:51:52,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:51:52,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:51:52,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:51:52,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (1/1) ... [2023-11-29 04:51:52,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:51:52,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:51:52,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:51:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:51:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:51:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:51:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:51:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:51:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:51:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:51:52,800 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:51:52,803 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:51:53,010 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:51:53,067 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:51:53,067 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:51:53,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:51:53 BoogieIcfgContainer [2023-11-29 04:51:53,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:51:53,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:51:53,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:51:53,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:51:53,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:51:52" (1/3) ... [2023-11-29 04:51:53,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12a5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:51:53, skipping insertion in model container [2023-11-29 04:51:53,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:51:52" (2/3) ... [2023-11-29 04:51:53,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12a5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:51:53, skipping insertion in model container [2023-11-29 04:51:53,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:51:53" (3/3) ... [2023-11-29 04:51:53,077 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-61.i [2023-11-29 04:51:53,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:51:53,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:51:53,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:51:53,151 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;@34479f78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:51:53,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:51:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 04:51:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 04:51:53,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:53,167 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:53,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:53,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:53,174 INFO L85 PathProgramCache]: Analyzing trace with hash 186350007, now seen corresponding path program 1 times [2023-11-29 04:51:53,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:51:53,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474186097] [2023-11-29 04:51:53,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:53,188 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 04:51:53,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:51:53,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:53,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:51:53,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:51:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-29 04:51:53,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:51:53,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:51:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474186097] [2023-11-29 04:51:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474186097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:51:53,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:51:53,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:51:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042591467] [2023-11-29 04:51:53,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:51:53,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:51:53,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:51:53,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:51:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:51:53,469 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:51:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:51:53,511 INFO L93 Difference]: Finished difference Result 75 states and 128 transitions. [2023-11-29 04:51:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:51:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 76 [2023-11-29 04:51:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:51:53,522 INFO L225 Difference]: With dead ends: 75 [2023-11-29 04:51:53,522 INFO L226 Difference]: Without dead ends: 37 [2023-11-29 04:51:53,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:51:53,529 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:51:53,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:51:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-29 04:51:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-29 04:51:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 04:51:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2023-11-29 04:51:53,571 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 76 [2023-11-29 04:51:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:51:53,572 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2023-11-29 04:51:53,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:51:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-11-29 04:51:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 04:51:53,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:53,576 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:53,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:53,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:53,782 INFO L85 PathProgramCache]: Analyzing trace with hash -224680717, now seen corresponding path program 1 times [2023-11-29 04:51:53,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:51:53,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765114387] [2023-11-29 04:51:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:53,783 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 04:51:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:51:53,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:53,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:51:53,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:51:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:51:54,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:51:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 04:51:54,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:51:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765114387] [2023-11-29 04:51:54,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765114387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:51:54,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:51:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 04:51:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308640907] [2023-11-29 04:51:54,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:51:54,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:51:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:51:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:51:54,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:51:54,231 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 04:51:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:51:54,558 INFO L93 Difference]: Finished difference Result 92 states and 131 transitions. [2023-11-29 04:51:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:51:54,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 76 [2023-11-29 04:51:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:51:54,563 INFO L225 Difference]: With dead ends: 92 [2023-11-29 04:51:54,563 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 04:51:54,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:51:54,566 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:51:54,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 106 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:51:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 04:51:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2023-11-29 04:51:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.2) internal successors, (36), 31 states have internal predecessors, (36), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:51:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2023-11-29 04:51:54,581 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 76 [2023-11-29 04:51:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:51:54,582 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2023-11-29 04:51:54,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 04:51:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2023-11-29 04:51:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 04:51:54,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:51:54,585 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:54,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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)] Forceful destruction successful, exit code 0 [2023-11-29 04:51:54,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:54,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:51:54,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:51:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1392529085, now seen corresponding path program 1 times [2023-11-29 04:51:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:51:54,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646077824] [2023-11-29 04:51:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:51:54,791 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 04:51:54,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:51:54,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:54,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576b3eb4-a155-46e7-959a-8c52646b453e/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 04:51:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:51:54,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:51:54,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:51:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:51:55,588 INFO L327 TraceCheckSpWp]: Computing backward predicates...