./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:20:19,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:20:19,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:20:19,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:20:19,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:20:19,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:20:19,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:20:19,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:20:19,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:20:19,159 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:20:19,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:20:19,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:20:19,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:20:19,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:20:19,161 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:20:19,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:20:19,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:20:19,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:20:19,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:20:19,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:20:19,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:20:19,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:20:19,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:20:19,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:20:19,166 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:20:19,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:20:19,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:20:19,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:20:19,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:20:19,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:20:19,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:20:19,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:20:19,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:20:19,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:20:19,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:20:19,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:20:19,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:20:19,171 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 [2023-11-29 06:20:19,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:20:19,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:20:19,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:20:19,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:20:19,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:20:19,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:22,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:20:22,392 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:20:22,392 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:22,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/ea27d14a6/394943d33cb941a081d2d506365e2b0c/FLAG1945a8dfd [2023-11-29 06:20:22,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/ea27d14a6/394943d33cb941a081d2d506365e2b0c [2023-11-29 06:20:22,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:20:22,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:20:22,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:20:22,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:20:22,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:20:22,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc2113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22, skipping insertion in model container [2023-11-29 06:20:22,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:20:22,609 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-11-29 06:20:22,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:20:22,662 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:20:22,673 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-11-29 06:20:22,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:20:22,708 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:20:22,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22 WrapperNode [2023-11-29 06:20:22,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:20:22,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:20:22,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:20:22,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:20:22,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,753 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2023-11-29 06:20:22,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:20:22,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:20:22,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:20:22,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:20:22,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,783 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:20:22,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:20:22,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:20:22,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:20:22,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:20:22,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (1/1) ... [2023-11-29 06:20:22,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:20:22,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:22,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:20:22,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:20:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:20:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:20:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:20:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:20:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:20:22,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:20:22,933 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:20:22,935 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:20:23,199 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:20:23,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:20:23,233 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:20:23,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23 BoogieIcfgContainer [2023-11-29 06:20:23,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:20:23,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:20:23,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:20:23,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:20:23,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:20:22" (1/3) ... [2023-11-29 06:20:23,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46600500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:23, skipping insertion in model container [2023-11-29 06:20:23,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:22" (2/3) ... [2023-11-29 06:20:23,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46600500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:23, skipping insertion in model container [2023-11-29 06:20:23,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23" (3/3) ... [2023-11-29 06:20:23,240 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:23,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:20:23,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:20:23,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:20:23,309 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;@5d5c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:20:23,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:20:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:23,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:20:23,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:23,327 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:23,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:23,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:23,333 INFO L85 PathProgramCache]: Analyzing trace with hash -19833920, now seen corresponding path program 1 times [2023-11-29 06:20:23,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:23,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479660899] [2023-11-29 06:20:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:23,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:23,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479660899] [2023-11-29 06:20:23,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:20:23,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417745775] [2023-11-29 06:20:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:23,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:23,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:23,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:23,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:20:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:23,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:20:23,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-29 06:20:23,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:20:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417745775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:20:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:20:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:20:23,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327598045] [2023-11-29 06:20:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:20:23,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:20:23,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:20:23,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:20:23,736 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 06:20:23,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:23,769 INFO L93 Difference]: Finished difference Result 97 states and 170 transitions. [2023-11-29 06:20:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:20:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-29 06:20:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:23,779 INFO L225 Difference]: With dead ends: 97 [2023-11-29 06:20:23,779 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 06:20:23,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:20:23,785 INFO L413 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:23,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:20:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 06:20:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 06:20:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 73 transitions. [2023-11-29 06:20:23,826 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 73 transitions. Word has length 101 [2023-11-29 06:20:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:23,827 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 73 transitions. [2023-11-29 06:20:23,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 06:20:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2023-11-29 06:20:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:20:23,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:23,833 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:23,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:24,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:20:24,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:24,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:24,035 INFO L85 PathProgramCache]: Analyzing trace with hash 347093952, now seen corresponding path program 1 times [2023-11-29 06:20:24,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:24,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072345845] [2023-11-29 06:20:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:24,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:24,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:24,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852168024] [2023-11-29 06:20:24,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:24,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:24,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:24,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:20:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:24,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:20:24,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 215 proven. 45 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 06:20:24,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 06:20:25,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:25,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072345845] [2023-11-29 06:20:25,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852168024] [2023-11-29 06:20:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852168024] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:20:25,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:25,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 06:20:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949919083] [2023-11-29 06:20:25,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:25,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:20:25,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:20:25,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:20:25,173 INFO L87 Difference]: Start difference. First operand 48 states and 73 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-29 06:20:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:25,544 INFO L93 Difference]: Finished difference Result 107 states and 155 transitions. [2023-11-29 06:20:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:20:25,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 101 [2023-11-29 06:20:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:25,547 INFO L225 Difference]: With dead ends: 107 [2023-11-29 06:20:25,548 INFO L226 Difference]: Without dead ends: 60 [2023-11-29 06:20:25,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:20:25,550 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 98 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:25,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 119 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:20:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-29 06:20:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-11-29 06:20:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2023-11-29 06:20:25,566 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 101 [2023-11-29 06:20:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:25,567 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2023-11-29 06:20:25,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-29 06:20:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-29 06:20:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:20:25,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:25,569 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:25,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:20:25,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:25,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:25,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:25,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1048158530, now seen corresponding path program 1 times [2023-11-29 06:20:25,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:25,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115362582] [2023-11-29 06:20:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:25,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:25,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:25,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338573102] [2023-11-29 06:20:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:25,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:25,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:25,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:25,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:20:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:26,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:20:26,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 48 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-29 06:20:26,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:26,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:20:26,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115362582] [2023-11-29 06:20:26,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:20:26,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338573102] [2023-11-29 06:20:26,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338573102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:26,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:20:26,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:20:26,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162102622] [2023-11-29 06:20:26,849 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:26,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:20:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:20:26,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:20:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:20:26,851 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 06:20:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:27,562 INFO L93 Difference]: Finished difference Result 173 states and 227 transitions. [2023-11-29 06:20:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 06:20:27,563 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 101 [2023-11-29 06:20:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:27,566 INFO L225 Difference]: With dead ends: 173 [2023-11-29 06:20:27,566 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 06:20:27,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2023-11-29 06:20:27,569 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 129 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:27,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 207 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:20:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 06:20:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 65. [2023-11-29 06:20:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2023-11-29 06:20:27,592 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 101 [2023-11-29 06:20:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:27,593 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2023-11-29 06:20:27,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 06:20:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2023-11-29 06:20:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:20:27,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:27,596 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:27,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:20:27,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:27,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:27,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 238811904, now seen corresponding path program 1 times [2023-11-29 06:20:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:20:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083074644] [2023-11-29 06:20:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:20:27,838 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:20:27,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384013330] [2023-11-29 06:20:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:27,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:27,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:27,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:20:27,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:20:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:20:28,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:20:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:20:28,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:20:28,293 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:20:28,294 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:20:28,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:20:28,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:20:28,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 06:20:28,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:20:28,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 06:20:28,559 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 06:20:28,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:20:28 BoogieIcfgContainer [2023-11-29 06:20:28,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:20:28,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:20:28,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:20:28,578 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:20:28,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:23" (3/4) ... [2023-11-29 06:20:28,581 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:20:28,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:20:28,582 INFO L158 Benchmark]: Toolchain (without parser) took 6140.54ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 121.2MB in the beginning and 127.8MB in the end (delta: -6.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2023-11-29 06:20:28,582 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:20:28,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.95ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 108.6MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:20:28,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 105.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:20:28,583 INFO L158 Benchmark]: Boogie Preprocessor took 47.88ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:20:28,584 INFO L158 Benchmark]: RCFGBuilder took 429.62ms. Allocated memory is still 148.9MB. Free memory was 102.9MB in the beginning and 82.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:20:28,584 INFO L158 Benchmark]: TraceAbstraction took 5342.43ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 82.0MB in the beginning and 127.8MB in the end (delta: -45.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:20:28,584 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 180.4MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:20:28,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.95ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 108.6MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 148.9MB. Free memory was 108.6MB in the beginning and 105.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.88ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.62ms. Allocated memory is still 148.9MB. Free memory was 102.9MB in the beginning and 82.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5342.43ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 82.0MB in the beginning and 127.8MB in the end (delta: -45.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 180.4MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned short int var_1_3 = 100; [L25] unsigned char var_1_6 = 16; [L26] signed char var_1_7 = -25; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 25; [L29] signed char var_1_10 = -10; [L30] signed char var_1_11 = 0; [L31] signed long int var_1_12 = 25; [L32] unsigned long int var_1_13 = 2531521428; [L33] signed long int var_1_14 = -128; [L34] signed long int var_1_15 = 256; [L35] signed short int var_1_16 = -16; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L64] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=16, var_1_9=25] [L72] var_1_8 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L73] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 31) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L78] var_1_10 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L79] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L82] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L84] var_1_13 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L85] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L86] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L99] RET updateVariables() [L100] CALL step() [L39] var_1_14 = var_1_8 [L40] var_1_16 = var_1_14 [L41] signed long int stepLocal_0 = (((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)); VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=-25, var_1_8=6, var_1_9=0] [L42] COND FALSE !(var_1_2 <= stepLocal_0) [L45] var_1_7 = var_1_10 VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L47] var_1_15 = var_1_16 VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L48] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L48] COND FALSE !(((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) [L51] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L53] unsigned char stepLocal_1 = var_1_1; VAL [isInitial=1, stepLocal_0=6, stepLocal_1=254, var_1_10=6, var_1_11=0, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L54] COND TRUE 2.75f > var_1_12 [L55] var_1_11 = (var_1_10 + var_1_8) VAL [isInitial=1, stepLocal_0=6, stepLocal_1=254, var_1_10=6, var_1_11=12, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L91-L92] return ((((((((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_2 <= ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_7 == ((signed char) ((var_1_8 - (1 + var_1_9)) + var_1_10))) : (var_1_7 == ((signed char) var_1_10)))) && ((2.75f > var_1_12) ? (var_1_11 == ((signed char) (var_1_10 + var_1_8))) : (((var_1_13 - ((((var_1_14) > (var_1_8)) ? (var_1_14) : (var_1_8)))) > var_1_1) ? (var_1_11 == ((signed char) ((((((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) < (var_1_10)) ? (((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) : (var_1_10))))) : 1))) && (var_1_14 == ((signed long int) var_1_8))) && (var_1_15 == ((signed long int) var_1_16))) && (var_1_16 == ((signed short int) var_1_14)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=12, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=6, var_1_11=12, var_1_12=2147483647, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=254, var_1_2=32767, var_1_3=32767, var_1_6=254, var_1_7=6, var_1_8=6, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 396 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 225 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 588 IncrementalHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 171 mSDtfsCounter, 588 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 57 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 1888 SizeOfPredicates, 11 NumberOfNonLiveVariables, 744 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1782/1920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:20:28,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:20:30,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:20:30,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 06:20:30,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:20:30,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:20:30,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:20:30,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:20:30,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:20:30,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:20:30,652 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:20:30,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:20:30,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:20:30,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:20:30,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:20:30,655 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:20:30,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:20:30,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:20:30,657 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:20:30,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:20:30,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:20:30,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:20:30,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:20:30,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:20:30,659 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:20:30,660 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:20:30,660 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:20:30,660 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:20:30,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:20:30,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:20:30,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:20:30,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:20:30,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:20:30,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:20:30,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:20:30,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:20:30,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:20:30,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:20:30,664 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:20:30,664 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:20:30,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:20:30,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:20:30,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:20:30,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:20:30,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:20:30,666 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:20:30,666 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 [2023-11-29 06:20:30,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:20:31,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:20:31,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:20:31,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:20:31,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:20:31,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:33,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:20:34,049 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:20:34,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:34,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/0bc139c89/f45e13dc47804cf1aac608cca1d5de80/FLAG416192ae6 [2023-11-29 06:20:34,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/data/0bc139c89/f45e13dc47804cf1aac608cca1d5de80 [2023-11-29 06:20:34,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:20:34,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:20:34,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:20:34,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:20:34,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:20:34,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd85c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34, skipping insertion in model container [2023-11-29 06:20:34,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:20:34,227 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-11-29 06:20:34,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:20:34,285 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:20:34,295 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_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i[916,929] [2023-11-29 06:20:34,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:20:34,335 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:20:34,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34 WrapperNode [2023-11-29 06:20:34,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:20:34,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:20:34,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:20:34,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:20:34,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,380 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-29 06:20:34,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:20:34,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:20:34,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:20:34,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:20:34,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,396 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,410 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:20:34,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:20:34,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:20:34,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:20:34,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:20:34,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (1/1) ... [2023-11-29 06:20:34,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:20:34,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:20:34,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:20:34,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:20:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:20:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:20:34,496 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:20:34,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:20:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:20:34,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:20:34,587 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:20:34,589 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:20:35,092 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:20:35,133 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:20:35,134 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:20:35,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:35 BoogieIcfgContainer [2023-11-29 06:20:35,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:20:35,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:20:35,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:20:35,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:20:35,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:20:34" (1/3) ... [2023-11-29 06:20:35,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406b022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:35, skipping insertion in model container [2023-11-29 06:20:35,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34" (2/3) ... [2023-11-29 06:20:35,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4406b022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:35, skipping insertion in model container [2023-11-29 06:20:35,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:35" (3/3) ... [2023-11-29 06:20:35,142 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i [2023-11-29 06:20:35,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:20:35,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:20:35,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:20:35,200 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;@609565f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:20:35,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:20:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:20:35,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:35,214 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:35,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:35,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:35,219 INFO L85 PathProgramCache]: Analyzing trace with hash 208737381, now seen corresponding path program 1 times [2023-11-29 06:20:35,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:20:35,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853903968] [2023-11-29 06:20:35,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:35,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:20:35,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:20:35,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:20:35,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:20:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:35,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:20:35,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:35,439 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-29 06:20:35,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:20:35,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:20:35,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853903968] [2023-11-29 06:20:35,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853903968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:20:35,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:20:35,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:20:35,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515897416] [2023-11-29 06:20:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:20:35,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:20:35,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:20:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:20:35,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:20:35,489 INFO L87 Difference]: Start difference. First operand has 43 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 06:20:35,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:35,593 INFO L93 Difference]: Finished difference Result 83 states and 144 transitions. [2023-11-29 06:20:35,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:20:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2023-11-29 06:20:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:35,608 INFO L225 Difference]: With dead ends: 83 [2023-11-29 06:20:35,608 INFO L226 Difference]: Without dead ends: 41 [2023-11-29 06:20:35,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:20:35,615 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:35,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:20:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-29 06:20:35,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-29 06:20:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2023-11-29 06:20:35,657 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 98 [2023-11-29 06:20:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:35,658 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2023-11-29 06:20:35,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-29 06:20:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-11-29 06:20:35,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:20:35,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:35,663 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:35,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:20:35,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:20:35,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:35,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2113811557, now seen corresponding path program 1 times [2023-11-29 06:20:35,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:20:35,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031365422] [2023-11-29 06:20:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:35,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:20:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:20:35,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:20:35,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:20:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:36,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:20:36,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 06:20:36,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:36,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:20:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031365422] [2023-11-29 06:20:36,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031365422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [487588484] [2023-11-29 06:20:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:36,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:20:36,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:20:36,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:20:36,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-29 06:20:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:37,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:20:37,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 06:20:37,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [487588484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:37,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:20:37,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-11-29 06:20:37,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509996147] [2023-11-29 06:20:37,644 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:20:37,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:20:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:20:37,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:20:37,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:20:37,646 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 06:20:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:20:39,057 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2023-11-29 06:20:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:20:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 98 [2023-11-29 06:20:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:20:39,060 INFO L225 Difference]: With dead ends: 93 [2023-11-29 06:20:39,060 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 06:20:39,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:20:39,062 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:20:39,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 116 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:20:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 06:20:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-11-29 06:20:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 06:20:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2023-11-29 06:20:39,076 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 98 [2023-11-29 06:20:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:20:39,077 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2023-11-29 06:20:39,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 06:20:39,077 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-29 06:20:39,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:20:39,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:20:39,079 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:20:39,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 06:20:39,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-29 06:20:39,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 06:20:39,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:20:39,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:20:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1304464931, now seen corresponding path program 1 times [2023-11-29 06:20:39,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:20:39,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476867345] [2023-11-29 06:20:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:39,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:20:39,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:20:39,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:20:39,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 06:20:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:39,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:20:39,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:20:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 114 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-29 06:20:40,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:20:45,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:20:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476867345] [2023-11-29 06:20:45,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476867345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:20:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1995361190] [2023-11-29 06:20:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:20:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:20:45,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:20:45,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:20:45,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de36947-2df9-4b4c-9b44-9f0c6f15ec07/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-29 06:20:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:20:45,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:20:45,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:23:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 312 proven. 93 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 06:23:31,646 INFO L327 TraceCheckSpWp]: Computing backward predicates...