./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.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_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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_05926e12-8c28-4774-bfd9-07fdb391a55d/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 e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:40:02,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:40:02,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:40:02,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:40:02,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:40:02,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:40:02,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:40:02,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:40:02,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:40:02,686 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:40:02,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:40:02,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:40:02,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:40:02,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:40:02,689 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:40:02,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:40:02,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:40:02,691 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:40:02,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:40:02,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:40:02,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:40:02,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:40:02,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:40:02,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:40:02,694 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:40:02,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:40:02,695 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:40:02,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:40:02,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:40:02,696 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:40:02,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:40:02,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:02,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:40:02,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:40:02,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:40:02,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:40:02,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:40:02,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:40:02,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:40:02,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:40:02,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:40:02,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:40:02,700 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_05926e12-8c28-4774-bfd9-07fdb391a55d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad [2023-11-28 20:40:02,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:40:02,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:40:02,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:40:02,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:40:02,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:40:02,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:05,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:40:05,901 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:40:05,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:05,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/eb9fc67eb/1a729fac47db419b9a66afc710b7af51/FLAG966eb70a4 [2023-11-28 20:40:05,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/eb9fc67eb/1a729fac47db419b9a66afc710b7af51 [2023-11-28 20:40:05,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:40:05,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:40:05,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:05,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:40:05,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:40:05,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:05" (1/1) ... [2023-11-28 20:40:05,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270eceeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:05, skipping insertion in model container [2023-11-28 20:40:05,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:05" (1/1) ... [2023-11-28 20:40:05,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:40:06,103 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_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-28 20:40:06,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:06,150 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:40:06,163 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_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-28 20:40:06,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:06,199 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:40:06,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06 WrapperNode [2023-11-28 20:40:06,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:06,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:06,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:40:06,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:40:06,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,245 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-28 20:40:06,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:06,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:40:06,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:40:06,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:40:06,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,274 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]. [2023-11-28 20:40:06,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:40:06,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:40:06,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:40:06,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:40:06,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:06,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:40:06,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:40:06,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:40:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:40:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:40:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:40:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:40:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:40:06,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:40:06,438 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:40:06,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:40:06,626 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:40:06,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:40:06,667 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:40:06,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:06 BoogieIcfgContainer [2023-11-28 20:40:06,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:40:06,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:40:06,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:40:06,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:40:06,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:40:05" (1/3) ... [2023-11-28 20:40:06,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40182862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:06, skipping insertion in model container [2023-11-28 20:40:06,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (2/3) ... [2023-11-28 20:40:06,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40182862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:06, skipping insertion in model container [2023-11-28 20:40:06,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:06" (3/3) ... [2023-11-28 20:40:06,678 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:06,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:40:06,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:40:06,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:40:06,756 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;@7e8f91c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:40:06,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:40:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-28 20:40:06,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:06,773 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:06,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:06,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:06,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1703742509, now seen corresponding path program 1 times [2023-11-28 20:40:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707217720] [2023-11-28 20:40:06,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:06,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 20:40:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:40:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:40:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:40:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:40:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:40:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:40:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:40:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:40:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:40:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 20:40:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:40:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 20:40:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 20:40:07,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:07,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707217720] [2023-11-28 20:40:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707217720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:07,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:07,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498689306] [2023-11-28 20:40:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:07,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:40:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:07,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:40:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:40:07,123 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:40:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:40:07,154 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2023-11-28 20:40:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:40:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-11-28 20:40:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:40:07,165 INFO L225 Difference]: With dead ends: 79 [2023-11-28 20:40:07,165 INFO L226 Difference]: Without dead ends: 39 [2023-11-28 20:40:07,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:40:07,172 INFO L413 NwaCegarLoop]: 54 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, 54 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 [2023-11-28 20:40:07,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:40:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-28 20:40:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-28 20:40:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2023-11-28 20:40:07,217 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 82 [2023-11-28 20:40:07,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:40:07,217 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2023-11-28 20:40:07,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:40:07,218 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-28 20:40:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-28 20:40:07,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:07,222 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:07,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:40:07,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:07,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2025109917, now seen corresponding path program 1 times [2023-11-28 20:40:07,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:07,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709129686] [2023-11-28 20:40:07,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:07,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-28 20:40:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-28 20:40:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:40:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:40:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:40:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:40:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:40:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:40:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:40:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:40:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 20:40:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:40:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 20:40:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 20:40:07,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:07,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709129686] [2023-11-28 20:40:07,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709129686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:07,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:40:07,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988832177] [2023-11-28 20:40:07,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:07,416 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-28 20:40:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:40:07,453 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2023-11-28 20:40:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:07,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 82 [2023-11-28 20:40:07,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:40:07,456 INFO L225 Difference]: With dead ends: 86 [2023-11-28 20:40:07,456 INFO L226 Difference]: Without dead ends: 48 [2023-11-28 20:40:07,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:07,459 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:40:07,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 98 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:40:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-28 20:40:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-28 20:40:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-28 20:40:07,471 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 82 [2023-11-28 20:40:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:40:07,473 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-28 20:40:07,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-28 20:40:07,473 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-28 20:40:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-28 20:40:07,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:07,475 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:40:07,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:07,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1636828383, now seen corresponding path program 1 times [2023-11-28 20:40:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:07,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840618641] [2023-11-28 20:40:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:40:07,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:40:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:40:07,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:40:07,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:40:07,641 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:40:07,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:40:07,645 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-28 20:40:07,648 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:40:07,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:40:07 BoogieIcfgContainer [2023-11-28 20:40:07,708 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:40:07,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:40:07,709 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:40:07,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:40:07,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:06" (3/4) ... [2023-11-28 20:40:07,712 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:40:07,713 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:40:07,714 INFO L158 Benchmark]: Toolchain (without parser) took 1788.64ms. Allocated memory is still 144.7MB. Free memory was 115.5MB in the beginning and 56.6MB in the end (delta: 59.0MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,714 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:40:07,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.41ms. Allocated memory is still 144.7MB. Free memory was 115.5MB in the beginning and 103.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,715 INFO L158 Benchmark]: Boogie Preprocessor took 43.73ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,716 INFO L158 Benchmark]: RCFGBuilder took 377.92ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 83.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,717 INFO L158 Benchmark]: TraceAbstraction took 1037.24ms. Allocated memory is still 144.7MB. Free memory was 82.9MB in the beginning and 56.6MB in the end (delta: 26.4MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-11-28 20:40:07,717 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 144.7MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:40:07,720 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 102.8MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.41ms. Allocated memory is still 144.7MB. Free memory was 115.5MB in the beginning and 103.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 144.7MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.73ms. Allocated memory is still 144.7MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.92ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 83.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1037.24ms. Allocated memory is still 144.7MB. Free memory was 82.9MB in the beginning and 56.6MB in the end (delta: 26.4MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 144.7MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryDOUBLEComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_3 = 0; [L25] signed char var_1_4 = 64; [L26] signed char var_1_5 = 64; [L27] unsigned short int var_1_6 = 25; [L28] float var_1_7 = 256.4; [L29] double var_1_10 = 9999999999.515; [L30] float var_1_11 = 8.5; [L31] float var_1_12 = 2.5; [L32] double var_1_13 = 15.8; [L33] double var_1_14 = 25.8; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L64] var_1_2 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L65] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L66] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L66] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L67] var_1_3 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L68] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L69] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L69] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=64, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L70] var_1_4 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L71] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L72] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L72] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=64, var_1_6=25, var_1_7=1282/5] [L73] var_1_5 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L74] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L75] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L75] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25, var_1_7=1282/5] [L76] var_1_7 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L77] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_11=17/2, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L78] var_1_11 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L79] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_12=5/2, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L80] var_1_12 = __VERIFIER_nondet_float() [L81] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L81] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_13=79/5, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L82] var_1_13 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L83] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_14=129/5, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L84] var_1_14 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L85] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L98] RET updateVariables() [L99] CALL step() [L37] COND FALSE !(! var_1_2) VAL [isInitial=1, var_1_10=1999999999903/200, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L44] COND FALSE !(var_1_7 < (var_1_11 - var_1_12)) [L51] var_1_10 = var_1_14 VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L53] COND TRUE \read(var_1_2) VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=25] [L54] COND TRUE (var_1_7 - ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) <= var_1_10 [L55] var_1_6 = ((((256) < 0 ) ? -(256) : (256))) VAL [isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((! var_1_2) ? ((! var_1_2) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - var_1_5)))) : 1) && (var_1_2 ? (((var_1_7 - ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) <= var_1_10) ? (var_1_6 == ((unsigned short int) ((((256) < 0 ) ? -(256) : (256))))) : (var_1_6 == ((unsigned short int) var_1_5))) : (var_1_6 == ((unsigned short int) 16)))) && ((var_1_7 < (var_1_11 - var_1_12)) ? (((var_1_7 / 7.2) <= var_1_11) ? (var_1_10 == ((double) (var_1_13 - var_1_14))) : (var_1_10 == ((double) var_1_13))) : (var_1_10 == ((double) var_1_14))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000004, var_1_14=10000000004, var_1_1=-16, var_1_2=1, var_1_3=32, var_1_4=0, var_1_5=0, var_1_6=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 107 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 247 NumberOfCodeBlocks, 247 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 624/624 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 [2023-11-28 20:40:07,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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_05926e12-8c28-4774-bfd9-07fdb391a55d/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 e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:40:09,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:40:09,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 20:40:09,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:40:09,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:40:09,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:40:09,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:40:09,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:40:09,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:40:09,771 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:40:09,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:40:09,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:40:09,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:40:09,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:40:09,774 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:40:09,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:40:09,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:40:09,775 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:40:09,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:40:09,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:40:09,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:40:09,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:40:09,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:40:09,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:40:09,778 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:40:09,779 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:40:09,779 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:40:09,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:40:09,780 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:40:09,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:40:09,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:40:09,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:40:09,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:40:09,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:09,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:40:09,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:40:09,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:40:09,782 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:40:09,782 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:40:09,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:40:09,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:40:09,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:40:09,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:40:09,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:40:09,783 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:40:09,784 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_05926e12-8c28-4774-bfd9-07fdb391a55d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e506e1f7b38bbd8fe6b4b58e9d148d1ba7590120c1d7e1a0e5beae3abdd695ad [2023-11-28 20:40:10,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:40:10,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:40:10,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:40:10,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:40:10,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:40:10,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:12,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:40:13,065 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:40:13,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:13,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/3e2cfabf4/4f94d3192df84ac1a11031518bf85269/FLAG21d71a528 [2023-11-28 20:40:13,087 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/data/3e2cfabf4/4f94d3192df84ac1a11031518bf85269 [2023-11-28 20:40:13,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:40:13,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:40:13,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:13,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:40:13,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:40:13,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24966774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13, skipping insertion in model container [2023-11-28 20:40:13,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,122 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:40:13,261 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_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-28 20:40:13,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:13,310 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:40:13,324 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_05926e12-8c28-4774-bfd9-07fdb391a55d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-79.i[915,928] [2023-11-28 20:40:13,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:13,363 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:40:13,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13 WrapperNode [2023-11-28 20:40:13,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:13,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:13,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:40:13,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:40:13,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,409 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-28 20:40:13,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:13,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:40:13,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:40:13,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:40:13,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,439 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]. [2023-11-28 20:40:13,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:40:13,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:40:13,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:40:13,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:40:13,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (1/1) ... [2023-11-28 20:40:13,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:40:13,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:40:13,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:40:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:40:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:40:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:40:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:40:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:40:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:40:13,616 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:40:13,618 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:40:28,536 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:40:28,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:40:28,582 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:40:28,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:28 BoogieIcfgContainer [2023-11-28 20:40:28,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:40:28,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:40:28,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:40:28,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:40:28,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:40:13" (1/3) ... [2023-11-28 20:40:28,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740a7de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:28, skipping insertion in model container [2023-11-28 20:40:28,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:13" (2/3) ... [2023-11-28 20:40:28,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740a7de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:28, skipping insertion in model container [2023-11-28 20:40:28,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:28" (3/3) ... [2023-11-28 20:40:28,592 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-79.i [2023-11-28 20:40:28,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:40:28,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:40:28,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:40:28,660 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;@4532e724, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:40:28,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:40:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-28 20:40:28,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:28,673 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:28,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:28,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:28,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1703742509, now seen corresponding path program 1 times [2023-11-28 20:40:28,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:40:28,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80000981] [2023-11-28 20:40:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:28,688 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 [2023-11-28 20:40:28,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:40:28,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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) [2023-11-28 20:40:28,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:29,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:40:29,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:40:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-28 20:40:29,772 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:40:29,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:40:29,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80000981] [2023-11-28 20:40:29,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80000981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:29,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:29,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:29,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012667159] [2023-11-28 20:40:29,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:29,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:40:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:40:29,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:40:29,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:40:29,815 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:40:34,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:40:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:40:34,916 INFO L93 Difference]: Finished difference Result 79 states and 135 transitions. [2023-11-28 20:40:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:40:35,203 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-11-28 20:40:35,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:40:35,210 INFO L225 Difference]: With dead ends: 79 [2023-11-28 20:40:35,211 INFO L226 Difference]: Without dead ends: 39 [2023-11-28 20:40:35,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:40:35,217 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:40:35,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-11-28 20:40:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-28 20:40:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-28 20:40:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. [2023-11-28 20:40:35,255 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 82 [2023-11-28 20:40:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:40:35,255 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. [2023-11-28 20:40:35,256 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-28 20:40:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-28 20:40:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-28 20:40:35,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:35,260 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:35,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:35,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:35,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:35,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2025109917, now seen corresponding path program 1 times [2023-11-28 20:40:35,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:40:35,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68984554] [2023-11-28 20:40:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:35,464 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 [2023-11-28 20:40:35,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:40:35,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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) [2023-11-28 20:40:35,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:36,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:40:36,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:40:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-28 20:40:36,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:40:36,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:40:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68984554] [2023-11-28 20:40:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68984554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:36,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:40:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074652382] [2023-11-28 20:40:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:36,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:36,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:40:36,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:36,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:36,567 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-28 20:40:41,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:40:45,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:40:49,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:40:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:40:49,698 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2023-11-28 20:40:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 82 [2023-11-28 20:40:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:40:49,998 INFO L225 Difference]: With dead ends: 86 [2023-11-28 20:40:49,998 INFO L226 Difference]: Without dead ends: 48 [2023-11-28 20:40:49,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:50,001 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:40:50,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 97 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2023-11-28 20:40:50,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-28 20:40:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-28 20:40:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:40:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 62 transitions. [2023-11-28 20:40:50,021 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 62 transitions. Word has length 82 [2023-11-28 20:40:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:40:50,023 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 62 transitions. [2023-11-28 20:40:50,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-28 20:40:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2023-11-28 20:40:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-28 20:40:50,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:50,026 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:50,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:50,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:40:50,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1636828383, now seen corresponding path program 1 times [2023-11-28 20:40:50,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:40:50,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141664803] [2023-11-28 20:40:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:50,228 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 [2023-11-28 20:40:50,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:40:50,229 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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) [2023-11-28 20:40:50,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05926e12-8c28-4774-bfd9-07fdb391a55d/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 [2023-11-28 20:40:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:51,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:40:51,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:37,143 WARN L293 SmtUtils]: Spent 15.12s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)