./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:50:35,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:50:35,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:50:35,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:50:35,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:50:35,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:50:35,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:50:35,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:50:35,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:50:35,661 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:50:35,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:50:35,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:50:35,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:50:35,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:50:35,664 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:50:35,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:50:35,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:50:35,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:50:35,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:50:35,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:50:35,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:50:35,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:50:35,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:50:35,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:50:35,669 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:50:35,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:50:35,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:50:35,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:50:35,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:50:35,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:50:35,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:50:35,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:50:35,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:50:35,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:50:35,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:50:35,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:50:35,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:50:35,674 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 [2023-11-29 04:50:35,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:50:35,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:50:35,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:50:35,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:50:35,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:50:35,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:38,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:50:38,834 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:50:38,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:38,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/2ffb2edf5/96339aba6c694f148e89c2dc73e5c00b/FLAG95107cd40 [2023-11-29 04:50:38,856 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/2ffb2edf5/96339aba6c694f148e89c2dc73e5c00b [2023-11-29 04:50:38,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:50:38,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:50:38,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:38,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:50:38,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:50:38,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:38" (1/1) ... [2023-11-29 04:50:38,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a969ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:38, skipping insertion in model container [2023-11-29 04:50:38,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:38" (1/1) ... [2023-11-29 04:50:38,893 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:50:39,022 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2023-11-29 04:50:39,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:39,075 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:50:39,088 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2023-11-29 04:50:39,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:39,126 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:50:39,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39 WrapperNode [2023-11-29 04:50:39,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:39,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:39,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:50:39,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:50:39,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,174 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-11-29 04:50:39,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:39,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:50:39,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:50:39,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:50:39,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,207 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:50:39,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:50:39,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:50:39,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:50:39,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:50:39,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (1/1) ... [2023-11-29 04:50:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:50:39,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:39,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:39,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:50:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:50:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:50:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:50:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:50:39,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:50:39,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:50:39,371 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:50:39,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:50:39,597 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:50:39,637 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:50:39,637 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:50:39,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:39 BoogieIcfgContainer [2023-11-29 04:50:39,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:50:39,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:50:39,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:50:39,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:50:39,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:50:38" (1/3) ... [2023-11-29 04:50:39,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c300240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:50:39, skipping insertion in model container [2023-11-29 04:50:39,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:39" (2/3) ... [2023-11-29 04:50:39,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c300240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:50:39, skipping insertion in model container [2023-11-29 04:50:39,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:39" (3/3) ... [2023-11-29 04:50:39,646 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:39,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:50:39,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:50:39,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:50:39,704 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;@450fdbc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:50:39,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:50:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:39,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:39,716 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:39,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:39,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash -822484078, now seen corresponding path program 1 times [2023-11-29 04:50:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:39,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715961332] [2023-11-29 04:50:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:39,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:50:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:50:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 04:50:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 04:50:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 04:50:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 04:50:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 04:50:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 04:50:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 04:50:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 04:50:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:50:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:39,995 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:50:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:50:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715961332] [2023-11-29 04:50:39,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715961332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:50:39,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:50:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:50:39,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072154576] [2023-11-29 04:50:40,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:50:40,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:50:40,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:50:40,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:50:40,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:50:40,034 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:50:40,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:40,074 INFO L93 Difference]: Finished difference Result 71 states and 116 transitions. [2023-11-29 04:50:40,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:50:40,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2023-11-29 04:50:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:50:40,082 INFO L225 Difference]: With dead ends: 71 [2023-11-29 04:50:40,082 INFO L226 Difference]: Without dead ends: 34 [2023-11-29 04:50:40,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:50:40,088 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:50:40,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:50:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-29 04:50:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-29 04:50:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2023-11-29 04:50:40,123 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 71 [2023-11-29 04:50:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:50:40,123 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2023-11-29 04:50:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-29 04:50:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2023-11-29 04:50:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:40,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:40,128 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:40,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:50:40,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:40,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:40,129 INFO L85 PathProgramCache]: Analyzing trace with hash -444207410, now seen corresponding path program 1 times [2023-11-29 04:50:40,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:40,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673968499] [2023-11-29 04:50:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:50:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 04:50:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 04:50:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 04:50:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 04:50:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 04:50:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 04:50:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 04:50:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 04:50:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 04:50:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:50:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:50:40,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:50:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673968499] [2023-11-29 04:50:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673968499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:50:40,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:50:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:50:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471455981] [2023-11-29 04:50:40,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:50:40,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:50:40,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:50:40,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:50:40,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:50:40,471 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:40,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:40,519 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2023-11-29 04:50:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:50:40,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 71 [2023-11-29 04:50:40,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:50:40,521 INFO L225 Difference]: With dead ends: 68 [2023-11-29 04:50:40,522 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 04:50:40,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:50:40,524 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 18 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:50:40,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 102 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:50:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 04:50:40,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2023-11-29 04:50:40,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2023-11-29 04:50:40,533 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2023-11-29 04:50:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:50:40,535 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2023-11-29 04:50:40,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2023-11-29 04:50:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:40,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:40,537 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:40,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:50:40,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:40,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash -386949108, now seen corresponding path program 1 times [2023-11-29 04:50:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:40,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889761750] [2023-11-29 04:50:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:40,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:40,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:40,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:40,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:50:40,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:50:40,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:50:40,746 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 04:50:40,750 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:50:40,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:50:40 BoogieIcfgContainer [2023-11-29 04:50:40,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:50:40,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:50:40,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:50:40,802 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:50:40,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:39" (3/4) ... [2023-11-29 04:50:40,804 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:50:40,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:50:40,806 INFO L158 Benchmark]: Toolchain (without parser) took 1945.80ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 65.3MB in the end (delta: 41.2MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,806 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:50:40,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.75ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 93.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.11ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,807 INFO L158 Benchmark]: Boogie Preprocessor took 50.23ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 86.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,808 INFO L158 Benchmark]: RCFGBuilder took 411.63ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 107.6MB in the end (delta: -20.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,808 INFO L158 Benchmark]: TraceAbstraction took 1160.60ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 66.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-11-29 04:50:40,809 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 65.3MB in the end (delta: 916.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:50:40,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.75ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 93.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.11ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 91.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.23ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 86.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 411.63ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 107.6MB in the end (delta: -20.7MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1160.60ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 66.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 65.3MB in the end (delta: 916.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_3 = 10; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned long int var_1_9 = 5; [L29] unsigned long int var_1_10 = 3126062476; [L30] unsigned short int var_1_13 = 10; [L31] signed long int var_1_14 = 128; [L32] float var_1_15 = 4.2; [L33] float var_1_16 = 5.1; [L85] isInitial = 1 [L86] FCALL initially() [L87] int k_loop; [L88] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=10, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L88] COND TRUE k_loop < 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L63] var_1_6 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L65] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L65] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L66] var_1_7 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L68] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L68] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L69] var_1_8 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L71] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L71] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L72] var_1_10 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_10 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L73] RET assume_abort_if_not(var_1_10 >= 2147483647) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L75] var_1_16 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L76] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L90] RET updateVariables() [L91] CALL step() [L37] var_1_13 = var_1_3 [L38] var_1_14 = var_1_3 [L39] var_1_15 = var_1_16 [L40] unsigned short int stepLocal_0 = var_1_13; VAL [isInitial=1, stepLocal_0=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L41] COND FALSE !(-4 >= stepLocal_0) VAL [isInitial=1, stepLocal_0=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L44] signed long int stepLocal_2 = var_1_14; VAL [isInitial=1, stepLocal_0=4, stepLocal_2=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L45] COND FALSE !(var_1_3 < stepLocal_2) VAL [isInitial=1, stepLocal_0=4, stepLocal_2=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L48] unsigned long int stepLocal_1 = 8 * var_1_9; VAL [isInitial=1, stepLocal_0=4, stepLocal_1=40, stepLocal_2=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L49] COND FALSE !(stepLocal_1 == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) [L56] var_1_4 = var_1_8 VAL [isInitial=1, stepLocal_0=4, stepLocal_1=40, stepLocal_2=4, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L91] RET step() [L92] CALL, EXPR property() [L81-L82] return ((((((-4 >= var_1_13) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((((1) < 0 ) ? -(1) : (1))))) ? (var_1_3) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * var_1_9) == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) ? (var_1_6 ? (var_1_4 == ((unsigned char) (var_1_7 && var_1_8))) : (var_1_4 == ((unsigned char) var_1_8))) : (var_1_4 == ((unsigned char) var_1_8)))) && ((var_1_3 < var_1_14) ? (var_1_9 == ((unsigned long int) (((((3851651024u - var_1_3)) < ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1)))))) ? ((3851651024u - var_1_3)) : ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1))))))))) : 1)) && (var_1_13 == ((unsigned short int) var_1_3))) && (var_1_14 == ((signed long int) var_1_3))) && (var_1_15 == ((float) var_1_16)) ; [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2147483647, var_1_13=4, var_1_14=4, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 84 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 04:50:40,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:50:42,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:50:42,833 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:50:42,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:50:42,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:50:42,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:50:42,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:50:42,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:50:42,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:50:42,865 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:50:42,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:50:42,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:50:42,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:50:42,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:50:42,868 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:50:42,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:50:42,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:50:42,869 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:50:42,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:50:42,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:50:42,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:50:42,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:50:42,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:50:42,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:50:42,872 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:50:42,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:50:42,873 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:50:42,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:50:42,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:50:42,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:50:42,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:50:42,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:50:42,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:50:42,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:50:42,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:50:42,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:50:42,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:50:42,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:50:42,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:50:42,877 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:50:42,878 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 [2023-11-29 04:50:43,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:50:43,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:50:43,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:50:43,198 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:50:43,199 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:50:43,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:46,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:50:46,187 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:50:46,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:46,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/a90189753/39c54f47b3ac43dd88c8503911dd5fcf/FLAG64068e119 [2023-11-29 04:50:46,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/data/a90189753/39c54f47b3ac43dd88c8503911dd5fcf [2023-11-29 04:50:46,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:50:46,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:50:46,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:46,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:50:46,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:50:46,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4026a5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46, skipping insertion in model container [2023-11-29 04:50:46,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:50:46,405 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2023-11-29 04:50:46,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:46,455 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:50:46,465 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_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2023-11-29 04:50:46,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:46,500 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:50:46,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46 WrapperNode [2023-11-29 04:50:46,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:46,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:46,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:50:46,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:50:46,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,543 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-11-29 04:50:46,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:46,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:50:46,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:50:46,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:50:46,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,570 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:50:46,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:50:46,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:50:46,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:50:46,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:50:46,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (1/1) ... [2023-11-29 04:50:46,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:50:46,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:46,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:46,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:50:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:50:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:50:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:50:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:50:46,723 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:50:46,725 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:50:46,931 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:50:46,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:50:46,983 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:50:46,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:46 BoogieIcfgContainer [2023-11-29 04:50:46,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:50:46,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:50:46,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:50:46,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:50:46,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:50:46" (1/3) ... [2023-11-29 04:50:46,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4d7916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:50:46, skipping insertion in model container [2023-11-29 04:50:46,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:46" (2/3) ... [2023-11-29 04:50:46,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4d7916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:50:46, skipping insertion in model container [2023-11-29 04:50:46,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:46" (3/3) ... [2023-11-29 04:50:46,994 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i [2023-11-29 04:50:47,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:50:47,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:50:47,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:50:47,069 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;@2fe2fda9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:50:47,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:50:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:47,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:47,085 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:47,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:47,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash -822484078, now seen corresponding path program 1 times [2023-11-29 04:50:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:50:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806319814] [2023-11-29 04:50:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:47,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:50:47,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:50:47,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:50:47,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:50:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:47,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:50:47,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:50:47,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:50:47,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:50:47,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806319814] [2023-11-29 04:50:47,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806319814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:50:47,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:50:47,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:50:47,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298744031] [2023-11-29 04:50:47,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:50:47,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:50:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:50:47,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:50:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:50:47,413 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:47,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:47,456 INFO L93 Difference]: Finished difference Result 71 states and 116 transitions. [2023-11-29 04:50:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:50:47,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 71 [2023-11-29 04:50:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:50:47,465 INFO L225 Difference]: With dead ends: 71 [2023-11-29 04:50:47,466 INFO L226 Difference]: Without dead ends: 34 [2023-11-29 04:50:47,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:50:47,472 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:50:47,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:50:47,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-29 04:50:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-29 04:50:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2023-11-29 04:50:47,512 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 71 [2023-11-29 04:50:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:50:47,513 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2023-11-29 04:50:47,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2023-11-29 04:50:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:47,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:47,517 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:47,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:47,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:50:47,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:47,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash -444207410, now seen corresponding path program 1 times [2023-11-29 04:50:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:50:47,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258881598] [2023-11-29 04:50:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:47,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:50:47,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:50:47,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:50:47,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:50:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:47,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:50:47,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:50:48,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:50:48,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:50:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258881598] [2023-11-29 04:50:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258881598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:50:48,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:50:48,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:50:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380693064] [2023-11-29 04:50:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:50:48,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:50:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:50:48,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:50:48,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:50:48,005 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:48,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:48,059 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2023-11-29 04:50:48,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:50:48,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 71 [2023-11-29 04:50:48,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:50:48,061 INFO L225 Difference]: With dead ends: 68 [2023-11-29 04:50:48,061 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 04:50:48,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:50:48,064 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 18 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:50:48,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 100 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:50:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 04:50:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2023-11-29 04:50:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:50:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2023-11-29 04:50:48,081 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2023-11-29 04:50:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:50:48,083 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2023-11-29 04:50:48,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-29 04:50:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2023-11-29 04:50:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 04:50:48,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:50:48,085 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:50:48,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/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 04:50:48,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:50:48,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:50:48,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash -386949108, now seen corresponding path program 1 times [2023-11-29 04:50:48,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:50:48,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874100407] [2023-11-29 04:50:48,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:48,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:50:48,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:50:48,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:50:48,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc75f6da-6db6-46ac-ae1c-76fd6f7d004a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:50:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:48,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:50:48,438 INFO L285 TraceCheckSpWp]: Computing forward predicates...