./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1 --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 0a317ccf5ccba7274d910bf34daf53d91967ee1af8c7c38fb4b30f3de25d4d4d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:51:17,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:51:17,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:51:17,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:51:17,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:51:17,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:51:17,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:51:17,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:51:17,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:51:17,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:51:17,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:51:17,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:51:17,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:51:17,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:51:17,180 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:51:17,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:51:17,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:51:17,181 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:51:17,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:17,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:17,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:51:17,182 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:51:17,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1 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 -> 0a317ccf5ccba7274d910bf34daf53d91967ee1af8c7c38fb4b30f3de25d4d4d [2024-12-02 13:51:17,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:51:17,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:51:17,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:51:17,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:51:17,435 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:51:17,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:20,154 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/ee8f068f7/97b3061b91cc4e39902e48c823ea0271/FLAGf30a178f9 [2024-12-02 13:51:20,347 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:51:20,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:20,355 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/ee8f068f7/97b3061b91cc4e39902e48c823ea0271/FLAGf30a178f9 [2024-12-02 13:51:20,368 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/ee8f068f7/97b3061b91cc4e39902e48c823ea0271 [2024-12-02 13:51:20,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:51:20,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:51:20,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:51:20,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:51:20,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:51:20,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430ade90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20, skipping insertion in model container [2024-12-02 13:51:20,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:51:20,525 WARN L250 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i[915,928] [2024-12-02 13:51:20,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:51:20,584 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:51:20,593 WARN L250 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i[915,928] [2024-12-02 13:51:20,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:51:20,633 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:51:20,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20 WrapperNode [2024-12-02 13:51:20,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:51:20,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:51:20,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:51:20,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:51:20,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,676 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2024-12-02 13:51:20,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:51:20,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:51:20,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:51:20,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:51:20,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,706 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]. [2024-12-02 13:51:20,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:51:20,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:51:20,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:51:20,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:51:20,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (1/1) ... [2024-12-02 13:51:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:20,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:20,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:51:20,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:51:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:51:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:51:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:51:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:51:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:51:20,832 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:51:20,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:51:21,072 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-02 13:51:21,072 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:51:21,082 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:51:21,082 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:51:21,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:21 BoogieIcfgContainer [2024-12-02 13:51:21,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:51:21,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:51:21,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:51:21,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:51:21,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:51:20" (1/3) ... [2024-12-02 13:51:21,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c4fcb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:21, skipping insertion in model container [2024-12-02 13:51:21,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:20" (2/3) ... [2024-12-02 13:51:21,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c4fcb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:21, skipping insertion in model container [2024-12-02 13:51:21,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:21" (3/3) ... [2024-12-02 13:51:21,090 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:21,100 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:51:21,102 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:51:21,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:51:21,152 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;@f7f4592, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:51:21,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:51:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:51:21,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:21,161 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:21,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:21,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash 424235863, now seen corresponding path program 1 times [2024-12-02 13:51:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:21,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731084584] [2024-12-02 13:51:21,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:21,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 13:51:21,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731084584] [2024-12-02 13:51:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731084584] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:51:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356021342] [2024-12-02 13:51:21,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:21,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:21,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:21,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:51:21,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:51:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:21,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:51:21,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 13:51:21,505 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:51:21,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356021342] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:21,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:51:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:51:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082702563] [2024-12-02 13:51:21,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:21,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:51:21,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:51:21,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:51:21,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:51:21,528 INFO L87 Difference]: Start difference. First operand has 51 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:51:21,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:21,545 INFO L93 Difference]: Finished difference Result 99 states and 157 transitions. [2024-12-02 13:51:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:51:21,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2024-12-02 13:51:21,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:21,552 INFO L225 Difference]: With dead ends: 99 [2024-12-02 13:51:21,552 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 13:51:21,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:51:21,556 INFO L435 NwaCegarLoop]: 70 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, 70 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 [2024-12-02 13:51:21,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:51:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 13:51:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 13:51:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-12-02 13:51:21,585 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 86 [2024-12-02 13:51:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:21,585 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-12-02 13:51:21,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:51:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-12-02 13:51:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:21,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:21,589 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:21,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:51:21,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:51:21,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:21,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash 67056631, now seen corresponding path program 1 times [2024-12-02 13:51:21,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:21,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329824720] [2024-12-02 13:51:21,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:21,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 13:51:21,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:21,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329824720] [2024-12-02 13:51:21,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329824720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:21,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:51:21,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:51:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675638874] [2024-12-02 13:51:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:21,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:51:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:51:21,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:51:21,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:51:21,996 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:22,015 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2024-12-02 13:51:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:51:22,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-12-02 13:51:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:22,017 INFO L225 Difference]: With dead ends: 91 [2024-12-02 13:51:22,017 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 13:51:22,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:51:22,018 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:22,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:51:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 13:51:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 13:51:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2024-12-02 13:51:22,026 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 87 [2024-12-02 13:51:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:22,027 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2024-12-02 13:51:22,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:22,028 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2024-12-02 13:51:22,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:22,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:22,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:22,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:51:22,029 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:22,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash -742289995, now seen corresponding path program 1 times [2024-12-02 13:51:22,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:22,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137449299] [2024-12-02 13:51:22,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:22,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 13:51:22,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:22,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137449299] [2024-12-02 13:51:22,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137449299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:22,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:51:22,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:51:22,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556560617] [2024-12-02 13:51:22,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:22,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:51:22,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:51:22,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:51:22,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:51:22,453 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:22,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:22,915 INFO L93 Difference]: Finished difference Result 174 states and 239 transitions. [2024-12-02 13:51:22,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:51:22,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-12-02 13:51:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:22,918 INFO L225 Difference]: With dead ends: 174 [2024-12-02 13:51:22,918 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 13:51:22,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:51:22,920 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 124 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:22,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 231 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:51:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 13:51:22,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 81. [2024-12-02 13:51:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 58 states have internal predecessors, (70), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 13:51:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2024-12-02 13:51:22,948 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 87 [2024-12-02 13:51:22,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:22,949 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2024-12-02 13:51:22,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2024-12-02 13:51:22,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:22,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:22,951 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:22,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:51:22,951 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:22,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash -740442953, now seen corresponding path program 1 times [2024-12-02 13:51:22,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:22,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056777036] [2024-12-02 13:51:22,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 13:51:23,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:51:23,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056777036] [2024-12-02 13:51:23,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056777036] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:51:23,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246714694] [2024-12-02 13:51:23,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:23,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:23,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:23,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:51:23,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:51:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:23,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:51:23,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 9 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 13:51:23,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:51:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 13:51:23,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246714694] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:51:23,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:51:23,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-12-02 13:51:23,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455684175] [2024-12-02 13:51:23,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:51:23,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:51:23,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:51:23,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:51:23,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:51:23,588 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:51:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:23,746 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2024-12-02 13:51:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:51:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2024-12-02 13:51:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:23,749 INFO L225 Difference]: With dead ends: 138 [2024-12-02 13:51:23,749 INFO L226 Difference]: Without dead ends: 60 [2024-12-02 13:51:23,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:51:23,750 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:23,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 101 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:51:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-12-02 13:51:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2024-12-02 13:51:23,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.105263157894737) internal successors, (42), 38 states have internal predecessors, (42), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-12-02 13:51:23,771 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 87 [2024-12-02 13:51:23,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:23,772 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-12-02 13:51:23,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:51:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-12-02 13:51:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:23,773 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:23,773 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:23,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:51:23,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:23,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:23,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:23,975 INFO L85 PathProgramCache]: Analyzing trace with hash -39378375, now seen corresponding path program 1 times [2024-12-02 13:51:23,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:51:23,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40084162] [2024-12-02 13:51:23,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:23,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:51:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:51:24,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106559899] [2024-12-02 13:51:24,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:24,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:24,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:24,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:51:24,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:51:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:51:24,172 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:51:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:51:24,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:51:24,259 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:51:24,260 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:51:24,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:51:24,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:51:24,464 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 13:51:24,512 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:51:24,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:51:24 BoogieIcfgContainer [2024-12-02 13:51:24,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:51:24,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:51:24,516 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:51:24,516 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:51:24,517 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:21" (3/4) ... [2024-12-02 13:51:24,519 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:51:24,519 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:51:24,520 INFO L158 Benchmark]: Toolchain (without parser) took 4148.94ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 92.2MB in the beginning and 106.5MB in the end (delta: -14.3MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,520 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:51:24,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.44ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.57ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 74.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:51:24,521 INFO L158 Benchmark]: Boogie Preprocessor took 49.14ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 68.4MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,522 INFO L158 Benchmark]: RCFGBuilder took 355.21ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 48.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,522 INFO L158 Benchmark]: TraceAbstraction took 3431.21ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 47.9MB in the beginning and 106.6MB in the end (delta: -58.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,522 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 192.9MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 36.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:51:24,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.44ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.57ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 74.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.14ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 68.4MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 355.21ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 48.4MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3431.21ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 47.9MB in the beginning and 106.6MB in the end (delta: -58.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 192.9MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 36.1kB). Peak memory consumption was 8.4MB. 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 someBinaryFLOATComparisonOperation at line 106, overapproximation of someUnaryDOUBLEoperation at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 106. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] signed short int var_1_4 = -200; [L24] unsigned short int var_1_8 = 5; [L25] unsigned char var_1_9 = 1; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 16; [L29] unsigned char var_1_15 = 50; [L30] unsigned short int var_1_16 = 1; [L31] float var_1_17 = 25.4; [L32] float var_1_20 = 1.6; [L33] unsigned short int var_1_21 = 0; [L34] float var_1_24 = 128.5; [L35] double var_1_25 = -0.5; [L36] signed long int var_1_26 = 4; [L37] unsigned char last_1_var_1_9 = 1; [L38] float last_1_var_1_24 = 128.5; VAL [isInitial=0, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=-200, var_1_8=5, var_1_9=1] [L110] isInitial = 1 [L111] FCALL initially() [L112] int k_loop; [L113] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=-200, var_1_8=5, var_1_9=1] [L113] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=-200, var_1_8=5, var_1_9=1] [L114] CALL updateLastVariables() [L102] last_1_var_1_9 = var_1_9 [L103] last_1_var_1_24 = var_1_24 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=-200, var_1_8=5, var_1_9=1] [L114] RET updateLastVariables() [L115] CALL updateVariables() [L82] var_1_4 = __VERIFIER_nondet_short() [L83] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L83] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L84] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L85] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L85] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=5, var_1_9=1] [L86] var_1_8 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_9=1] [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_9=1] [L88] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L88] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L89] var_1_10 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L90] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L91] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L91] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L92] var_1_11 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L93] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L94] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L94] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L95] var_1_15 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L96] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L97] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L97] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L98] var_1_20 = __VERIFIER_nondet_float() [L99] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L99] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=16, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L115] RET updateVariables() [L116] CALL step() [L42] COND FALSE !((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) [L49] var_1_12 = var_1_15 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L51] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=1] [L52] COND TRUE (var_1_12 != var_1_4) || stepLocal_1 [L53] var_1_9 = var_1_11 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_4=5, var_1_8=0, var_1_9=0] [L55] var_1_26 = var_1_12 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L56] COND FALSE !((var_1_9 && var_1_11) && var_1_9) [L59] var_1_21 = ((23370 - var_1_15) + var_1_12) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L61] signed long int stepLocal_2 = -4; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L62] COND FALSE !(! (-4 < var_1_12)) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_2=-4, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L65] COND FALSE !(stepLocal_2 > var_1_21) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=23370, var_1_24=257/2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L69] var_1_16 = (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15))) [L70] var_1_25 = var_1_20 [L71] unsigned short int stepLocal_0 = var_1_16; VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, stepLocal_0=2, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=128, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L72] COND TRUE ((var_1_16 * var_1_16) / var_1_4) <= stepLocal_0 [L73] var_1_1 = var_1_12 VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L77] COND FALSE !((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L116] RET step() [L117] CALL, EXPR property() [L106-L107] return (((((((((((var_1_16 * var_1_16) / var_1_4) <= var_1_16) ? (var_1_1 == ((unsigned short int) var_1_12)) : (var_1_1 == ((unsigned short int) (var_1_12 + var_1_12)))) && (((var_1_12 != var_1_4) || var_1_10) ? (var_1_9 == ((unsigned char) var_1_11)) : 1)) && (((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) ? (((- last_1_var_1_24) < last_1_var_1_24) ? (last_1_var_1_9 ? (var_1_12 == ((unsigned char) 5)) : 1) : 1) : (var_1_12 == ((unsigned char) var_1_15)))) && (var_1_16 == ((unsigned short int) (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15)))))) && (((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) ? (var_1_17 == ((float) var_1_20)) : 1)) && (((var_1_9 && var_1_11) && var_1_9) ? (var_1_21 == ((unsigned short int) (var_1_26 + (var_1_15 + ((((var_1_12) > (var_1_12)) ? (var_1_12) : (var_1_12))))))) : (var_1_21 == ((unsigned short int) ((23370 - var_1_15) + var_1_12))))) && ((! (-4 < var_1_12)) ? (var_1_24 == ((float) var_1_20)) : ((-4 > var_1_21) ? (var_1_24 == ((float) 10.6f)) : 1))) && (var_1_25 == ((double) var_1_20))) && (var_1_26 == ((signed long int) var_1_12)) ; VAL [\result=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L117] RET, EXPR property() [L117] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=1, var_1_11=0, var_1_12=-766, var_1_15=-766, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_4=5, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 258 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 55 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 694 NumberOfCodeBlocks, 694 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 1 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1799/1848 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 13:51:24,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1 --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 0a317ccf5ccba7274d910bf34daf53d91967ee1af8c7c38fb4b30f3de25d4d4d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:51:26,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:51:26,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:51:26,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:51:26,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:51:26,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:51:26,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:51:26,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:51:26,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:51:26,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:51:26,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:51:26,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:51:26,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:51:26,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:51:26,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:51:26,584 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:51:26,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:26,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:26,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:51:26,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:51:26,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:51:26,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:51:26,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:51:26,586 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1 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 -> 0a317ccf5ccba7274d910bf34daf53d91967ee1af8c7c38fb4b30f3de25d4d4d [2024-12-02 13:51:26,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:51:26,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:51:26,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:51:26,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:51:26,839 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:51:26,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:29,531 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/efc836b49/6da6f0e9b0d943a9aec3e8c259573de4/FLAG470fa74bb [2024-12-02 13:51:29,704 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:51:29,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:29,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/efc836b49/6da6f0e9b0d943a9aec3e8c259573de4/FLAG470fa74bb [2024-12-02 13:51:29,727 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/data/efc836b49/6da6f0e9b0d943a9aec3e8c259573de4 [2024-12-02 13:51:29,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:51:29,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:51:29,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:51:29,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:51:29,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:51:29,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:51:29" (1/1) ... [2024-12-02 13:51:29,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb8ab76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:29, skipping insertion in model container [2024-12-02 13:51:29,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:51:29" (1/1) ... [2024-12-02 13:51:29,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:51:29,890 WARN L250 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i[915,928] [2024-12-02 13:51:29,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:51:29,951 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:51:29,962 WARN L250 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_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-40.i[915,928] [2024-12-02 13:51:29,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:51:30,004 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:51:30,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30 WrapperNode [2024-12-02 13:51:30,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:51:30,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:51:30,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:51:30,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:51:30,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,042 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-12-02 13:51:30,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:51:30,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:51:30,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:51:30,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:51:30,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,067 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]. [2024-12-02 13:51:30,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:51:30,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:51:30,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:51:30,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:51:30,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (1/1) ... [2024-12-02 13:51:30,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:51:30,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:51:30,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:51:30,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:51:30,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:51:30,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:51:30,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:51:30,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:51:30,202 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:51:30,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:51:30,670 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-02 13:51:30,671 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:51:30,680 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:51:30,680 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:51:30,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:30 BoogieIcfgContainer [2024-12-02 13:51:30,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:51:30,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:51:30,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:51:30,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:51:30,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:51:29" (1/3) ... [2024-12-02 13:51:30,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28798d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:30, skipping insertion in model container [2024-12-02 13:51:30,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:51:30" (2/3) ... [2024-12-02 13:51:30,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28798d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:51:30, skipping insertion in model container [2024-12-02 13:51:30,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:51:30" (3/3) ... [2024-12-02 13:51:30,690 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-40.i [2024-12-02 13:51:30,704 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:51:30,706 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:51:30,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:51:30,757 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;@7ef79f74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:51:30,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:51:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 13:51:30,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:30,770 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:30,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:30,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash 424235863, now seen corresponding path program 1 times [2024-12-02 13:51:30,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:51:30,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661434785] [2024-12-02 13:51:30,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:30,786 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 [2024-12-02 13:51:30,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:51:30,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:51:30,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:31,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:51:31,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 13:51:31,049 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:51:31,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:51:31,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661434785] [2024-12-02 13:51:31,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661434785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:31,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:51:31,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:51:31,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922828046] [2024-12-02 13:51:31,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:31,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:51:31,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:51:31,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:51:31,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:51:31,072 INFO L87 Difference]: Start difference. First operand has 51 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:51:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:31,092 INFO L93 Difference]: Finished difference Result 99 states and 157 transitions. [2024-12-02 13:51:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:51:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2024-12-02 13:51:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:31,100 INFO L225 Difference]: With dead ends: 99 [2024-12-02 13:51:31,100 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 13:51:31,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:51:31,105 INFO L435 NwaCegarLoop]: 70 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, 70 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 [2024-12-02 13:51:31,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:51:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 13:51:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 13:51:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-12-02 13:51:31,142 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 86 [2024-12-02 13:51:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:31,142 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-12-02 13:51:31,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:51:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2024-12-02 13:51:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:31,145 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:31,145 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:31,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:31,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:31,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:31,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:31,347 INFO L85 PathProgramCache]: Analyzing trace with hash 67056631, now seen corresponding path program 1 times [2024-12-02 13:51:31,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:51:31,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894829484] [2024-12-02 13:51:31,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:31,348 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 [2024-12-02 13:51:31,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:51:31,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:51:31,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:31,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:51:31,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 123 proven. 9 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 13:51:31,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:51:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 13:51:31,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:51:31,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894829484] [2024-12-02 13:51:31,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894829484] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:51:31,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:51:31,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-12-02 13:51:31,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233483952] [2024-12-02 13:51:31,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:51:31,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:51:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:51:31,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:51:31,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:51:31,949 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:51:32,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:32,773 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2024-12-02 13:51:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 13:51:32,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2024-12-02 13:51:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:32,775 INFO L225 Difference]: With dead ends: 147 [2024-12-02 13:51:32,775 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 13:51:32,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:51:32,777 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 93 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:32,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 185 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:51:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 13:51:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 49. [2024-12-02 13:51:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2024-12-02 13:51:32,789 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 87 [2024-12-02 13:51:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:32,790 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2024-12-02 13:51:32,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 13:51:32,790 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2024-12-02 13:51:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:32,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:32,791 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:32,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:32,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:32,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:32,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:32,993 INFO L85 PathProgramCache]: Analyzing trace with hash 768121209, now seen corresponding path program 1 times [2024-12-02 13:51:32,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:51:32,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469949634] [2024-12-02 13:51:32,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:32,993 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 [2024-12-02 13:51:32,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:51:32,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:51:32,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:33,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:51:33,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 13:51:33,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:51:33,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:51:33,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469949634] [2024-12-02 13:51:33,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469949634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:33,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:51:33,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:51:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651476882] [2024-12-02 13:51:33,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:33,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:51:33,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:51:33,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:51:33,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:51:33,189 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:33,319 INFO L93 Difference]: Finished difference Result 95 states and 123 transitions. [2024-12-02 13:51:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:51:33,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-12-02 13:51:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:33,327 INFO L225 Difference]: With dead ends: 95 [2024-12-02 13:51:33,327 INFO L226 Difference]: Without dead ends: 49 [2024-12-02 13:51:33,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:51:33,328 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:33,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:51:33,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-02 13:51:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-12-02 13:51:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 34 states have internal predecessors, (38), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:51:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2024-12-02 13:51:33,335 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 87 [2024-12-02 13:51:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:33,335 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2024-12-02 13:51:33,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2024-12-02 13:51:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:33,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:33,336 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:33,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:33,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:33,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:33,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash -41225417, now seen corresponding path program 1 times [2024-12-02 13:51:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:51:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944434711] [2024-12-02 13:51:33,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:33,538 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 [2024-12-02 13:51:33,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:51:33,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:51:33,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:33,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:51:33,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:51:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 13:51:33,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:51:33,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:51:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944434711] [2024-12-02 13:51:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944434711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:51:33,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:51:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:51:33,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716845935] [2024-12-02 13:51:33,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:51:33,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:51:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:51:33,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:51:33,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:51:33,893 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:51:34,587 INFO L93 Difference]: Finished difference Result 170 states and 215 transitions. [2024-12-02 13:51:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:51:34,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-12-02 13:51:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:51:34,589 INFO L225 Difference]: With dead ends: 170 [2024-12-02 13:51:34,589 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 13:51:34,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:51:34,590 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 117 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:51:34,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 183 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:51:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 13:51:34,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 82. [2024-12-02 13:51:34,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 53 states have internal predecessors, (56), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 13:51:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2024-12-02 13:51:34,609 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 87 [2024-12-02 13:51:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:51:34,609 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2024-12-02 13:51:34,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 13:51:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2024-12-02 13:51:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 13:51:34,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:51:34,611 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:51:34,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 13:51:34,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 13:51:34,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:51:34,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:51:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -39378375, now seen corresponding path program 1 times [2024-12-02 13:51:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:51:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549112765] [2024-12-02 13:51:34,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:51:34,813 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 [2024-12-02 13:51:34,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:51:34,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 13:51:34,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ad850a-0125-4e3e-b57b-7ab35e3ab85a/bin/uautomizer-verify-84ZbGMXZE1/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 (6)] Waiting until timeout for monitored process [2024-12-02 13:51:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:51:35,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:51:35,028 INFO L279 TraceCheckSpWp]: Computing forward predicates...