./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU --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 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:07,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:08,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:17:08,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:08,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:08,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:08,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:08,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:08,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:17:08,122 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:17:08,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:08,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:08,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:08,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:08,124 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:08,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:08,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:17:08,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:08,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:17:08,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:08,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:08,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:17:08,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:08,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:17:08,128 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:08,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:08,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:17:08,129 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:08,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:08,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:08,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:17:08,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:08,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:08,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:08,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:08,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:17:08,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:17:08,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:17:08,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:08,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:08,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:08,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:08,135 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2024-10-31 22:17:08,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:08,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:08,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:08,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:08,510 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:08,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i Unable to find full path for "g++" [2024-10-31 22:17:10,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:11,037 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:11,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-10-31 22:17:11,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/083f8b88f/98e33514f31449e6bfd817c9d1dfa601/FLAG84122aa20 [2024-10-31 22:17:11,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/083f8b88f/98e33514f31449e6bfd817c9d1dfa601 [2024-10-31 22:17:11,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:11,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:11,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:11,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:11,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:11,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3a9a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11, skipping insertion in model container [2024-10-31 22:17:11,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:11,420 WARN L251 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-10-31 22:17:11,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:11,492 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:11,508 WARN L251 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-10-31 22:17:11,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:11,591 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:11,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11 WrapperNode [2024-10-31 22:17:11,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:11,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:11,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:11,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:11,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,640 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2024-10-31 22:17:11,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:11,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:11,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:11,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:11,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,678 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]. [2024-10-31 22:17:11,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:11,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:11,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:11,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:11,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (1/1) ... [2024-10-31 22:17:11,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:11,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:11,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:11,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:17:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:17:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:17:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:12,033 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:12,036 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:12,396 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-31 22:17:12,396 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:12,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:12,409 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:17:12,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:12 BoogieIcfgContainer [2024-10-31 22:17:12,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:12,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:12,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:12,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:12,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:11" (1/3) ... [2024-10-31 22:17:12,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e7af21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:12, skipping insertion in model container [2024-10-31 22:17:12,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:11" (2/3) ... [2024-10-31 22:17:12,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e7af21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:12, skipping insertion in model container [2024-10-31 22:17:12,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:12" (3/3) ... [2024-10-31 22:17:12,422 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-10-31 22:17:12,449 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:12,449 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:17:12,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:12,546 INFO L333 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, 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;@54f981cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:12,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:17:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:17:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 22:17:12,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:12,570 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:12,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:12,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:12,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1495237132, now seen corresponding path program 1 times [2024-10-31 22:17:12,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071831363] [2024-10-31 22:17:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:12,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:17:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:17:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:17:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:17:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:17:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:12,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:17:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:17:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:17:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:17:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:17:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:17:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-31 22:17:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-31 22:17:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-31 22:17:13,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:13,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071831363] [2024-10-31 22:17:13,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071831363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:13,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:13,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011875986] [2024-10-31 22:17:13,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:13,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:17:13,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:17:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:13,139 INFO L87 Difference]: Start difference. First operand has 62 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 44 states have internal predecessors, (60), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-31 22:17:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:13,171 INFO L93 Difference]: Finished difference Result 121 states and 197 transitions. [2024-10-31 22:17:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:17:13,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-10-31 22:17:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:13,181 INFO L225 Difference]: With dead ends: 121 [2024-10-31 22:17:13,182 INFO L226 Difference]: Without dead ends: 58 [2024-10-31 22:17:13,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:13,189 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:13,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:17:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-31 22:17:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-31 22:17:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:17:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2024-10-31 22:17:13,254 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 106 [2024-10-31 22:17:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:13,255 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2024-10-31 22:17:13,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-31 22:17:13,256 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-10-31 22:17:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 22:17:13,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:13,261 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:13,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:13,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:13,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 631414668, now seen corresponding path program 1 times [2024-10-31 22:17:13,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:13,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125491834] [2024-10-31 22:17:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:17:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:17:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:17:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:17:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:17:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:17:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:17:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:17:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:17:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:13,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:17:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:17:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-31 22:17:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-31 22:17:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-31 22:17:14,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:14,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125491834] [2024-10-31 22:17:14,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125491834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:14,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:17:14,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28053972] [2024-10-31 22:17:14,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:14,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:17:14,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:17:14,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:17:14,043 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:14,372 INFO L93 Difference]: Finished difference Result 169 states and 250 transitions. [2024-10-31 22:17:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:17:14,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-10-31 22:17:14,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:14,376 INFO L225 Difference]: With dead ends: 169 [2024-10-31 22:17:14,376 INFO L226 Difference]: Without dead ends: 114 [2024-10-31 22:17:14,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:14,378 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 63 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:14,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 202 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:17:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-31 22:17:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2024-10-31 22:17:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:17:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2024-10-31 22:17:14,408 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 106 [2024-10-31 22:17:14,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:14,409 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2024-10-31 22:17:14,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2024-10-31 22:17:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-31 22:17:14,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:14,413 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:14,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:14,413 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:14,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash -261421130, now seen corresponding path program 1 times [2024-10-31 22:17:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:14,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766480059] [2024-10-31 22:17:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:14,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:17:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:17:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:17:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:17:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:17:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:17:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:17:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:17:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:17:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:17:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:17:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-31 22:17:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-31 22:17:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-31 22:17:14,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:14,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766480059] [2024-10-31 22:17:14,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766480059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:14,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:14,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:14,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232556953] [2024-10-31 22:17:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:14,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:14,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:14,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:14,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:14,814 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:14,972 INFO L93 Difference]: Finished difference Result 191 states and 280 transitions. [2024-10-31 22:17:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:17:14,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-10-31 22:17:14,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:14,975 INFO L225 Difference]: With dead ends: 191 [2024-10-31 22:17:14,975 INFO L226 Difference]: Without dead ends: 127 [2024-10-31 22:17:14,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:14,980 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 33 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:14,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 259 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:17:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-31 22:17:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2024-10-31 22:17:15,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 67 states have internal predecessors, (84), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:17:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 148 transitions. [2024-10-31 22:17:15,016 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 148 transitions. Word has length 110 [2024-10-31 22:17:15,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:15,017 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 148 transitions. [2024-10-31 22:17:15,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:15,017 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 148 transitions. [2024-10-31 22:17:15,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-31 22:17:15,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:15,019 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:15,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:15,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:15,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 705776343, now seen corresponding path program 1 times [2024-10-31 22:17:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130874800] [2024-10-31 22:17:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:17:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:17:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:17:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:17:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:17:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:17:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-31 22:17:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:17:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:17:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:17:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:15,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:17:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:16,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-31 22:17:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:16,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-31 22:17:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-31 22:17:16,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:16,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130874800] [2024-10-31 22:17:16,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130874800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:16,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:16,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:17:16,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28197652] [2024-10-31 22:17:16,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:16,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:17:16,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:16,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:17:16,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:17:16,044 INFO L87 Difference]: Start difference. First operand 102 states and 148 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:16,336 INFO L93 Difference]: Finished difference Result 195 states and 280 transitions. [2024-10-31 22:17:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:17:16,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-10-31 22:17:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:16,339 INFO L225 Difference]: With dead ends: 195 [2024-10-31 22:17:16,339 INFO L226 Difference]: Without dead ends: 127 [2024-10-31 22:17:16,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:16,344 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 58 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:16,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 196 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:17:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-31 22:17:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 118. [2024-10-31 22:17:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 83 states have internal predecessors, (106), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:17:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2024-10-31 22:17:16,386 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 111 [2024-10-31 22:17:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:16,387 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2024-10-31 22:17:16,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2024-10-31 22:17:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-31 22:17:16,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:16,393 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:16,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:17:16,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:16,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1852064547, now seen corresponding path program 1 times [2024-10-31 22:17:16,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:16,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120785151] [2024-10-31 22:17:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:17:16,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738035449] [2024-10-31 22:17:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:16,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:16,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:16,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:17:16,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:17:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:16,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:17:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:17:16,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:17:16,805 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:17:16,806 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:17:16,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:17:17,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:17,014 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-31 22:17:17,143 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:17:17,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:17:17 BoogieIcfgContainer [2024-10-31 22:17:17,151 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:17:17,152 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:17:17,152 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:17:17,153 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:17:17,153 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:12" (3/4) ... [2024-10-31 22:17:17,156 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:17:17,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:17:17,161 INFO L158 Benchmark]: Toolchain (without parser) took 6074.90ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 125.5MB in the beginning and 93.7MB in the end (delta: 31.8MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,161 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:17:17,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.28ms. Allocated memory is still 153.1MB. Free memory was 124.8MB in the beginning and 110.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.15ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,166 INFO L158 Benchmark]: Boogie Preprocessor took 49.40ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 106.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,167 INFO L158 Benchmark]: RCFGBuilder took 713.70ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 109.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,168 INFO L158 Benchmark]: TraceAbstraction took 4739.18ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 108.3MB in the beginning and 93.7MB in the end (delta: 14.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-10-31 22:17:17,168 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 184.5MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:17:17,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.28ms. Allocated memory is still 153.1MB. Free memory was 124.8MB in the beginning and 110.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.15ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.40ms. Allocated memory is still 153.1MB. Free memory was 108.8MB in the beginning and 106.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 713.70ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 109.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4739.18ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 108.3MB in the beginning and 93.7MB in the end (delta: 14.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 184.5MB. Free memory is still 93.7MB. 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 99, overapproximation of bitwiseOr at line 99. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_6 = 32; [L24] signed short int var_1_7 = 18477; [L25] signed short int var_1_8 = 5; [L26] float var_1_9 = 100.8; [L27] unsigned long int var_1_10 = 256; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 10; [L30] unsigned long int var_1_13 = 1879106797; [L31] unsigned long int var_1_14 = 1581421231; [L32] signed long int var_1_15 = -32; [L33] unsigned long int last_1_var_1_10 = 256; [L34] signed long int last_1_var_1_15 = -32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L103] isInitial = 1 [L104] FCALL initially() [L105] int k_loop; [L106] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L106] COND TRUE k_loop < 1 [L107] CALL updateLastVariables() [L95] last_1_var_1_10 = var_1_10 [L96] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L107] RET updateLastVariables() [L108] CALL updateVariables() [L69] var_1_6 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L72] var_1_7 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L73] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L75] var_1_8 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L77] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L77] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=504/5] [L78] var_1_9 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L80] var_1_11 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L81] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L82] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L82] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L87] var_1_13 = __VERIFIER_nondet_ulong() [L88] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L88] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L89] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L89] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L90] var_1_14 = __VERIFIER_nondet_ulong() [L91] CALL assume_abort_if_not(var_1_14 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L91] RET assume_abort_if_not(var_1_14 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L92] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L92] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L108] RET updateVariables() [L109] CALL step() [L38] unsigned long int stepLocal_1 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L39] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=32767, var_1_7=16383, var_1_8=16383] [L39] unsigned long int stepLocal_0 = last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))); [L40] COND FALSE !(stepLocal_0 != last_1_var_1_10) [L45] var_1_1 = var_1_9 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L47] signed short int stepLocal_2 = var_1_6; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=32767, var_1_10=256, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L48] COND FALSE !(\read(var_1_11)) [L55] var_1_10 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=32767, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L57] unsigned long int stepLocal_3 = var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=32767, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L58] COND FALSE !(var_1_1 <= var_1_9) [L65] var_1_15 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=32767, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L109] RET step() [L110] CALL, EXPR property() [L99] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L99-L100] return ((((last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10)))) != last_1_var_1_10) ? ((last_1_var_1_10 == (var_1_6 - (var_1_7 - var_1_8))) ? (var_1_1 == ((float) var_1_9)) : 1) : (var_1_1 == ((float) var_1_9))) && (var_1_11 ? (((var_1_7 % var_1_12) >= var_1_6) ? (var_1_10 == ((unsigned long int) ((var_1_13 + var_1_14) - var_1_7))) : (var_1_10 == ((unsigned long int) var_1_12))) : (var_1_10 == ((unsigned long int) var_1_7)))) && ((var_1_1 <= var_1_9) ? ((var_1_10 > (last_1_var_1_15 + (var_1_10 + var_1_7))) ? (var_1_15 == ((signed long int) var_1_7)) : (var_1_15 == ((signed long int) -5))) : (var_1_15 == ((signed long int) var_1_7))) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=123, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=32767, var_1_7=16383, var_1_8=16383, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 746 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 449 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 297 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 657 NumberOfCodeBlocks, 657 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1920/1920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:17:17,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU --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 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:20,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:20,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:17:20,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:20,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:20,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:20,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:20,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:20,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:17:20,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:17:20,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:20,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:20,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:20,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:20,317 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:20,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:20,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:17:20,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:20,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:20,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:20,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:17:20,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:20,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:17:20,325 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:17:20,328 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:17:20,329 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:20,329 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:17:20,329 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:20,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:17:20,330 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:20,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:20,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:20,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:17:20,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:20,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:20,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:20,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:20,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:17:20,336 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:17:20,336 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:17:20,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:20,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:20,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:20,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:20,340 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:17:20,340 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69e3fd0d89ff67704309f926d24cfd61e1dc768d923ba7c9bb18b30d139558fd [2024-10-31 22:17:20,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:20,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:20,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:20,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:20,855 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:20,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i Unable to find full path for "g++" [2024-10-31 22:17:23,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:23,760 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:23,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-10-31 22:17:23,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/861874394/3b775c5eb8694c83a868e56858a5df61/FLAG017456197 [2024-10-31 22:17:24,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/data/861874394/3b775c5eb8694c83a868e56858a5df61 [2024-10-31 22:17:24,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:24,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:24,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:24,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:24,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:24,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3567c952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24, skipping insertion in model container [2024-10-31 22:17:24,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,094 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:24,413 WARN L251 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-10-31 22:17:24,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:24,500 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:24,517 WARN L251 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_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-18.i[915,928] [2024-10-31 22:17:24,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:24,595 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:24,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24 WrapperNode [2024-10-31 22:17:24,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:24,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:24,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:24,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:24,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,674 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-10-31 22:17:24,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:24,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:24,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:24,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:24,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,705 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,724 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]. [2024-10-31 22:17:24,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:24,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:24,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:24,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:24,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (1/1) ... [2024-10-31 22:17:24,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:24,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:24,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:24,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:17:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:17:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:17:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:24,976 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:24,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:25,377 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-31 22:17:25,378 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:25,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:25,395 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:17:25,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:25 BoogieIcfgContainer [2024-10-31 22:17:25,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:25,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:25,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:25,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:25,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:24" (1/3) ... [2024-10-31 22:17:25,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc4c695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:25, skipping insertion in model container [2024-10-31 22:17:25,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:24" (2/3) ... [2024-10-31 22:17:25,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc4c695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:25, skipping insertion in model container [2024-10-31 22:17:25,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:25" (3/3) ... [2024-10-31 22:17:25,412 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-18.i [2024-10-31 22:17:25,434 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:25,435 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:17:25,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:25,574 INFO L333 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, 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;@a3def36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:25,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:17:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:17:25,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-31 22:17:25,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:25,599 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:25,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:25,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 542675238, now seen corresponding path program 1 times [2024-10-31 22:17:25,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:17:25,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134856998] [2024-10-31 22:17:25,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:25,624 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 [2024-10-31 22:17:25,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:17:25,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:17:25,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:17:25,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-10-31 22:17:25,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:17:25,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:17:25,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134856998] [2024-10-31 22:17:25,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134856998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:25,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:25,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:26,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641244970] [2024-10-31 22:17:26,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:17:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:17:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:17:26,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:26,047 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-31 22:17:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:26,082 INFO L93 Difference]: Finished difference Result 101 states and 165 transitions. [2024-10-31 22:17:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:17:26,084 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-10-31 22:17:26,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:26,091 INFO L225 Difference]: With dead ends: 101 [2024-10-31 22:17:26,091 INFO L226 Difference]: Without dead ends: 48 [2024-10-31 22:17:26,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:26,100 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:26,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:17:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-31 22:17:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-10-31 22:17:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 22:17:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-10-31 22:17:26,162 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 102 [2024-10-31 22:17:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:26,163 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-10-31 22:17:26,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-31 22:17:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-10-31 22:17:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-31 22:17:26,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:26,167 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:26,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:17:26,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:26,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:26,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1510370982, now seen corresponding path program 1 times [2024-10-31 22:17:26,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:17:26,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509799633] [2024-10-31 22:17:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:26,374 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 [2024-10-31 22:17:26,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:17:26,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:17:26,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:26,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:17:26,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-31 22:17:27,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:17:27,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:17:27,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509799633] [2024-10-31 22:17:27,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509799633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:27,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:27,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:17:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64673878] [2024-10-31 22:17:27,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:28,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:28,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:17:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:28,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:28,006 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:28,511 INFO L93 Difference]: Finished difference Result 139 states and 202 transitions. [2024-10-31 22:17:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:17:28,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-10-31 22:17:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:28,519 INFO L225 Difference]: With dead ends: 139 [2024-10-31 22:17:28,520 INFO L226 Difference]: Without dead ends: 94 [2024-10-31 22:17:28,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:17:28,522 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 41 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:28,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 208 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:17:28,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-31 22:17:28,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2024-10-31 22:17:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-31 22:17:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2024-10-31 22:17:28,556 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 102 [2024-10-31 22:17:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:28,557 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2024-10-31 22:17:28,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-31 22:17:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2024-10-31 22:17:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-31 22:17:28,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:28,561 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:28,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:28,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:28,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:28,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1128332867, now seen corresponding path program 1 times [2024-10-31 22:17:28,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:17:28,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837236020] [2024-10-31 22:17:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:28,764 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 [2024-10-31 22:17:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:17:28,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:17:28,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:29,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:17:29,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 252 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-31 22:17:30,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:17:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-10-31 22:17:31,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:17:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837236020] [2024-10-31 22:17:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837236020] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:17:31,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:17:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-31 22:17:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754578436] [2024-10-31 22:17:31,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:17:31,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:17:31,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:17:31,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:17:31,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:17:31,295 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-31 22:17:32,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:32,937 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions. [2024-10-31 22:17:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 22:17:32,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 103 [2024-10-31 22:17:32,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:32,941 INFO L225 Difference]: With dead ends: 196 [2024-10-31 22:17:32,941 INFO L226 Difference]: Without dead ends: 151 [2024-10-31 22:17:32,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:17:32,944 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 123 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:32,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 186 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 22:17:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-31 22:17:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 115. [2024-10-31 22:17:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 71 states have internal predecessors, (80), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-31 22:17:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 156 transitions. [2024-10-31 22:17:32,994 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 156 transitions. Word has length 103 [2024-10-31 22:17:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:32,995 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 156 transitions. [2024-10-31 22:17:32,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-31 22:17:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 156 transitions. [2024-10-31 22:17:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-31 22:17:33,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:33,000 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:33,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:17:33,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:17:33,201 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:33,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1808391237, now seen corresponding path program 1 times [2024-10-31 22:17:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:17:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975241772] [2024-10-31 22:17:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:33,203 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 [2024-10-31 22:17:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:17:33,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:17:33,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d5e145a-ec78-466e-9ab8-be72c8b5fa80/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-31 22:17:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:33,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:17:33,399 INFO L278 TraceCheckSpWp]: Computing forward predicates...