./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX --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 62c16d91e787288ae99ac41232bb0baaa3c2e24a529da812094625072884fa10 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:55:10,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:55:10,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:55:10,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:55:10,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:55:10,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:55:10,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:55:10,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:55:10,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:55:10,139 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:55:10,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:55:10,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:55:10,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:55:10,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:55:10,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:55:10,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:55:10,142 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:55:10,142 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:55:10,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:55:10,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:55:10,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:55:10,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:55:10,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:55:10,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:55:10,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:55:10,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:55:10,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:55:10,147 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:55:10,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:55:10,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:55:10,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:55:10,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:55:10,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:10,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:55:10,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:55:10,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:55:10,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:55:10,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:55:10,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:55:10,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:55:10,157 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:55:10,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:55:10,158 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62c16d91e787288ae99ac41232bb0baaa3c2e24a529da812094625072884fa10 [2024-11-08 17:55:10,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:55:10,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:55:10,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:55:10,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:55:10,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:55:10,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i Unable to find full path for "g++" [2024-11-08 17:55:12,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:55:13,055 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:55:13,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i [2024-11-08 17:55:13,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/4040b21a6/120409362e14435287d51957eec81c65/FLAGea2d2ef23 [2024-11-08 17:55:13,085 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/4040b21a6/120409362e14435287d51957eec81c65 [2024-11-08 17:55:13,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:55:13,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:55:13,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:13,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:55:13,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:55:13,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c24a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13, skipping insertion in model container [2024-11-08 17:55:13,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:55:13,335 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_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i[915,928] [2024-11-08 17:55:13,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:13,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:55:13,406 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_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i[915,928] [2024-11-08 17:55:13,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:13,452 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:55:13,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13 WrapperNode [2024-11-08 17:55:13,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:13,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:13,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:55:13,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:55:13,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,515 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-08 17:55:13,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:13,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:55:13,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:55:13,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:55:13,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,550 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]. [2024-11-08 17:55:13,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:55:13,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:55:13,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:55:13,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:55:13,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (1/1) ... [2024-11-08 17:55:13,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:13,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:55:13,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:55:13,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:55:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:55:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:55:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:55:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:55:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:55:13,764 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:55:13,767 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:55:14,075 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 17:55:14,075 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:55:14,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:55:14,108 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:55:14,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:14 BoogieIcfgContainer [2024-11-08 17:55:14,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:55:14,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:55:14,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:55:14,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:55:14,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:55:13" (1/3) ... [2024-11-08 17:55:14,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ddd697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:14, skipping insertion in model container [2024-11-08 17:55:14,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:13" (2/3) ... [2024-11-08 17:55:14,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ddd697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:14, skipping insertion in model container [2024-11-08 17:55:14,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:14" (3/3) ... [2024-11-08 17:55:14,123 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-46.i [2024-11-08 17:55:14,146 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:55:14,147 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:55:14,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:55:14,235 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;@2fb1be64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:55:14,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:55:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 17:55:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:55:14,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:14,252 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:14,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:14,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:14,261 INFO L85 PathProgramCache]: Analyzing trace with hash -946919497, now seen corresponding path program 1 times [2024-11-08 17:55:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894633696] [2024-11-08 17:55:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 17:55:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:55:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:55:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 17:55:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 17:55:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 17:55:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:55:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 17:55:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 17:55:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 17:55:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 17:55:14,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:14,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894633696] [2024-11-08 17:55:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894633696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:14,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:14,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:55:14,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89532009] [2024-11-08 17:55:14,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:14,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:55:14,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:55:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:14,723 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:55:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:14,752 INFO L93 Difference]: Finished difference Result 85 states and 133 transitions. [2024-11-08 17:55:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:55:14,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2024-11-08 17:55:14,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:14,767 INFO L225 Difference]: With dead ends: 85 [2024-11-08 17:55:14,768 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 17:55:14,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:14,779 INFO L432 NwaCegarLoop]: 61 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, 61 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 [2024-11-08 17:55:14,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 17:55:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 17:55:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 17:55:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-11-08 17:55:14,833 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 70 [2024-11-08 17:55:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:14,833 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-11-08 17:55:14,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 17:55:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-08 17:55:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:55:14,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:14,837 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:14,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:55:14,838 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:14,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:14,839 INFO L85 PathProgramCache]: Analyzing trace with hash 423107763, now seen corresponding path program 1 times [2024-11-08 17:55:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:14,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764359800] [2024-11-08 17:55:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:14,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 17:55:14,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587030064] [2024-11-08 17:55:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:14,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:55:14,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:55:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:55:15,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:55:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:55:15,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:55:15,309 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:55:15,311 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:55:15,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:55:15,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:15,517 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:55:15,585 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:55:15,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:55:15 BoogieIcfgContainer [2024-11-08 17:55:15,590 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:55:15,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:55:15,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:55:15,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:55:15,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:14" (3/4) ... [2024-11-08 17:55:15,595 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:55:15,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:55:15,599 INFO L158 Benchmark]: Toolchain (without parser) took 2508.97ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 150.7MB in the end (delta: 5.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-08 17:55:15,600 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:55:15,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.02ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 142.6MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:55:15,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.33ms. Allocated memory is still 195.0MB. Free memory was 142.6MB in the beginning and 139.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:55:15,601 INFO L158 Benchmark]: Boogie Preprocessor took 56.81ms. Allocated memory is still 195.0MB. Free memory was 139.9MB in the beginning and 137.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:55:15,602 INFO L158 Benchmark]: RCFGBuilder took 534.55ms. Allocated memory is still 195.0MB. Free memory was 137.0MB in the beginning and 121.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 17:55:15,602 INFO L158 Benchmark]: TraceAbstraction took 1477.97ms. Allocated memory is still 195.0MB. Free memory was 120.3MB in the beginning and 150.7MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:55:15,606 INFO L158 Benchmark]: Witness Printer took 5.61ms. Allocated memory is still 195.0MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:55:15,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.02ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 142.6MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.33ms. Allocated memory is still 195.0MB. Free memory was 142.6MB in the beginning and 139.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.81ms. Allocated memory is still 195.0MB. Free memory was 139.9MB in the beginning and 137.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.55ms. Allocated memory is still 195.0MB. Free memory was 137.0MB in the beginning and 121.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1477.97ms. Allocated memory is still 195.0MB. Free memory was 120.3MB in the beginning and 150.7MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.61ms. Allocated memory is still 195.0MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 88. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] double var_1_2 = 31.75; [L24] signed char var_1_4 = -8; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 1; [L27] unsigned char var_1_8 = 16; [L28] unsigned char var_1_9 = 8; [L29] signed long int var_1_10 = 256; [L30] signed long int last_1_var_1_10 = 256; VAL [isInitial=0, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_2=127/4, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L92] isInitial = 1 [L93] FCALL initially() [L94] int k_loop; [L95] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_2=127/4, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L95] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_2=127/4, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L95] COND TRUE k_loop < 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_2=127/4, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_double() [L69] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L69] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-8, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L70] var_1_4 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_4 >= -128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L71] RET assume_abort_if_not(var_1_4 >= -128) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L72] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L72] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L73] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L73] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L74] var_1_6 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_7=1, var_1_8=16, var_1_9=8] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_7=1, var_1_8=16, var_1_9=8] [L76] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L76] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L77] var_1_7 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L78] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L79] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L79] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=8] [L80] var_1_9 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16] [L81] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16] [L82] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=-255] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=-255] [L82] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=-255] [L97] RET updateVariables() [L98] CALL step() [L34] signed char stepLocal_3 = var_1_4; [L35] unsigned char stepLocal_2 = var_1_7; VAL [isInitial=1, last_1_var_1_10=256, stepLocal_2=1, stepLocal_3=-2, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=16, var_1_9=-255] [L36] COND TRUE 2 != stepLocal_3 [L37] var_1_8 = var_1_9 VAL [isInitial=1, last_1_var_1_10=256, stepLocal_2=1, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L45] signed long int stepLocal_1 = var_1_8 / var_1_4; [L46] signed long int stepLocal_0 = (((var_1_4) < (var_1_8)) ? (var_1_4) : (var_1_8)); VAL [isInitial=1, last_1_var_1_10=256, stepLocal_0=-2, stepLocal_1=0, stepLocal_2=1, var_1_10=256, var_1_1=1, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L47] COND FALSE !((- var_1_2) >= 16.75) [L58] var_1_1 = var_1_6 VAL [isInitial=1, last_1_var_1_10=256, stepLocal_0=-2, stepLocal_1=0, stepLocal_2=1, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L60] signed long int stepLocal_4 = var_1_8 * var_1_8; VAL [isInitial=1, last_1_var_1_10=256, stepLocal_0=-2, stepLocal_1=0, stepLocal_2=1, stepLocal_4=1, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L61] COND FALSE !(0 > stepLocal_4) VAL [isInitial=1, last_1_var_1_10=256, stepLocal_0=-2, stepLocal_1=0, stepLocal_2=1, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L98] RET step() [L99] CALL, EXPR property() [L88-L89] return ((((- var_1_2) >= 16.75) ? (((var_1_8 / var_1_4) >= var_1_8) ? ((((((var_1_4) < (var_1_8)) ? (var_1_4) : (var_1_8))) > -32) ? (var_1_1 == ((unsigned char) 0)) : (var_1_1 == ((unsigned char) var_1_6))) : (var_1_1 == ((unsigned char) var_1_7))) : (var_1_1 == ((unsigned char) var_1_6))) && ((2 != var_1_4) ? (var_1_8 == ((unsigned char) var_1_9)) : (((var_1_9 <= last_1_var_1_10) && var_1_7) ? (var_1_8 == ((unsigned char) 128)) : (var_1_8 == ((unsigned char) var_1_9))))) && ((0 > (var_1_8 * var_1_8)) ? (var_1_1 ? (var_1_10 == ((signed long int) 5)) : 1) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, var_1_10=256, var_1_1=0, var_1_4=-2, var_1_6=0, var_1_7=1, var_1_8=-255, var_1_9=-255] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 61 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:55:15,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX --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 62c16d91e787288ae99ac41232bb0baaa3c2e24a529da812094625072884fa10 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:55:18,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:55:18,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 17:55:18,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:55:18,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:55:18,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:55:18,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:55:18,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:55:18,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:55:18,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:55:18,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:55:18,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:55:18,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:55:18,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:55:18,585 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:55:18,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:55:18,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:55:18,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:55:18,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:55:18,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:55:18,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:55:18,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:55:18,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:55:18,593 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:55:18,593 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:55:18,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:55:18,594 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:55:18,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:55:18,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:55:18,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:55:18,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:55:18,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:55:18,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:55:18,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:55:18,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:18,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:55:18,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:55:18,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:55:18,599 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:55:18,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:55:18,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:55:18,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:55:18,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:55:18,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:55:18,603 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62c16d91e787288ae99ac41232bb0baaa3c2e24a529da812094625072884fa10 [2024-11-08 17:55:19,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:55:19,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:55:19,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:55:19,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:55:19,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:55:19,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i Unable to find full path for "g++" [2024-11-08 17:55:21,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:55:21,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:55:21,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i [2024-11-08 17:55:21,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/c5ba58f94/022424e95d0a43078e78b1889990dcb8/FLAG4ab7b2314 [2024-11-08 17:55:21,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/data/c5ba58f94/022424e95d0a43078e78b1889990dcb8 [2024-11-08 17:55:21,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:55:21,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:55:21,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:21,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:55:21,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:55:21,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:21" (1/1) ... [2024-11-08 17:55:21,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c35ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:21, skipping insertion in model container [2024-11-08 17:55:21,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:21" (1/1) ... [2024-11-08 17:55:21,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:55:22,235 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_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i[915,928] [2024-11-08 17:55:22,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:22,343 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:55:22,364 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_3d0fef6f-9f28-4770-bd37-22c33bf53cae/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-46.i[915,928] [2024-11-08 17:55:22,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:22,432 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:55:22,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22 WrapperNode [2024-11-08 17:55:22,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:22,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:22,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:55:22,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:55:22,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,532 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2024-11-08 17:55:22,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:22,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:55:22,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:55:22,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:55:22,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,658 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]. [2024-11-08 17:55:22,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:55:22,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:55:22,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:55:22,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:55:22,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (1/1) ... [2024-11-08 17:55:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:22,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:22,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:55:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:55:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:55:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:55:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 17:55:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 17:55:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:55:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:55:22,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:55:22,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:55:23,274 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 17:55:23,275 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:55:23,302 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:55:23,302 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:55:23,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:23 BoogieIcfgContainer [2024-11-08 17:55:23,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:55:23,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:55:23,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:55:23,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:55:23,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:55:21" (1/3) ... [2024-11-08 17:55:23,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41deffe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:23, skipping insertion in model container [2024-11-08 17:55:23,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:22" (2/3) ... [2024-11-08 17:55:23,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41deffe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:23, skipping insertion in model container [2024-11-08 17:55:23,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:23" (3/3) ... [2024-11-08 17:55:23,316 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-46.i [2024-11-08 17:55:23,338 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:55:23,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:55:23,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:55:23,426 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;@4ec5445e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:55:23,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:55:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 17:55:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:55:23,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:23,444 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:23,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:23,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash -946919497, now seen corresponding path program 1 times [2024-11-08 17:55:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:55:23,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059664737] [2024-11-08 17:55:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:23,467 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 [2024-11-08 17:55:23,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:55:23,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:55:23,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:55:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:55:23,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:55:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 17:55:23,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:55:23,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:55:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059664737] [2024-11-08 17:55:23,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059664737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:23,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:23,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:55:23,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170470184] [2024-11-08 17:55:23,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:23,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:55:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:55:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:55:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:23,803 INFO L87 Difference]: Start difference. First operand has 44 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 32 states have internal predecessors, (43), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:55:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:23,840 INFO L93 Difference]: Finished difference Result 85 states and 133 transitions. [2024-11-08 17:55:23,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:55:23,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 70 [2024-11-08 17:55:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:23,852 INFO L225 Difference]: With dead ends: 85 [2024-11-08 17:55:23,852 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 17:55:23,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:23,859 INFO L432 NwaCegarLoop]: 61 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, 61 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 [2024-11-08 17:55:23,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 17:55:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 17:55:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 17:55:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-11-08 17:55:23,910 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 70 [2024-11-08 17:55:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:23,911 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-11-08 17:55:23,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:55:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-08 17:55:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 17:55:23,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:23,915 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:23,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:55:24,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:55:24,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:24,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:24,117 INFO L85 PathProgramCache]: Analyzing trace with hash 423107763, now seen corresponding path program 1 times [2024-11-08 17:55:24,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:55:24,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825739762] [2024-11-08 17:55:24,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:24,118 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 [2024-11-08 17:55:24,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:55:24,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:55:24,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:55:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:24,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 17:55:24,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:56:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 17:56:47,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:56:47,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:56:47,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825739762] [2024-11-08 17:56:47,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825739762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:47,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:47,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:56:47,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098106865] [2024-11-08 17:56:47,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:47,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:56:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:56:47,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:56:47,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:56:47,863 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:56:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:56:48,264 INFO L93 Difference]: Finished difference Result 74 states and 97 transitions. [2024-11-08 17:56:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:56:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 70 [2024-11-08 17:56:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:56:48,267 INFO L225 Difference]: With dead ends: 74 [2024-11-08 17:56:48,267 INFO L226 Difference]: Without dead ends: 72 [2024-11-08 17:56:48,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:56:48,269 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 43 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:56:48,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 255 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:56:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-08 17:56:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2024-11-08 17:56:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 52 states have internal predecessors, (67), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 17:56:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2024-11-08 17:56:48,286 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 70 [2024-11-08 17:56:48,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:56:48,287 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2024-11-08 17:56:48,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:56:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2024-11-08 17:56:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 17:56:48,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:56:48,290 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:56:48,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:56:48,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:56:48,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:56:48,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1142516594, now seen corresponding path program 1 times [2024-11-08 17:56:48,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:56:48,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019467914] [2024-11-08 17:56:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:48,496 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 [2024-11-08 17:56:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:56:48,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:56:48,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:56:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:48,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 17:56:48,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:57:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 17:57:28,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:57:28,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:57:28,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019467914] [2024-11-08 17:57:28,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019467914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:28,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:28,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:57:28,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196378476] [2024-11-08 17:57:28,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:28,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:57:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:57:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:57:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:57:28,850 INFO L87 Difference]: Start difference. First operand 65 states and 89 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:57:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:57:30,917 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2024-11-08 17:57:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:57:30,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71 [2024-11-08 17:57:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:57:30,920 INFO L225 Difference]: With dead ends: 80 [2024-11-08 17:57:30,920 INFO L226 Difference]: Without dead ends: 78 [2024-11-08 17:57:30,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:57:30,922 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 48 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:57:30,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 338 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 17:57:30,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-08 17:57:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2024-11-08 17:57:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 52 states have internal predecessors, (67), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 17:57:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2024-11-08 17:57:30,938 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 71 [2024-11-08 17:57:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:57:30,939 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2024-11-08 17:57:30,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 17:57:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2024-11-08 17:57:30,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 17:57:30,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:57:30,942 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:57:30,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:57:31,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:57:31,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:57:31,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:31,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1118420178, now seen corresponding path program 1 times [2024-11-08 17:57:31,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:57:31,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045698115] [2024-11-08 17:57:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:31,149 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 [2024-11-08 17:57:31,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:57:31,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 17:57:31,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 17:57:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:31,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 17:57:31,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:57:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 93 proven. 9 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 17:57:34,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:58,272 WARN L286 SmtUtils]: Spent 22.48s on a formula simplification. DAG size of input: 252 DAG size of output: 245 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 18:00:59,904 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:00:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045698115] [2024-11-08 18:00:59,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045698115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:00:59,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636566850] [2024-11-08 18:00:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:00:59,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:00:59,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:00:59,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:00:59,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:01:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:00,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:01:00,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:01:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-08 18:01:04,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:02:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:02:47,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636566850] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:02:47,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:02:47,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 10] total 25 [2024-11-08 18:02:47,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578042784] [2024-11-08 18:02:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:02:47,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:02:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:02:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:02:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:02:47,429 INFO L87 Difference]: Start difference. First operand 65 states and 89 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:02:52,411 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2024-11-08 18:02:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:02:52,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71 [2024-11-08 18:02:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:02:52,418 INFO L225 Difference]: With dead ends: 91 [2024-11-08 18:02:52,418 INFO L226 Difference]: Without dead ends: 89 [2024-11-08 18:02:52,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:02:52,420 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 50 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:02:52,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 313 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:02:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-08 18:02:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 73. [2024-11-08 18:02:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 60 states have internal predecessors, (78), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:02:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2024-11-08 18:02:52,430 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 71 [2024-11-08 18:02:52,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:02:52,431 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2024-11-08 18:02:52,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:02:52,431 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2024-11-08 18:02:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 18:02:52,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:02:52,433 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:02:52,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:02:52,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:02:52,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:02:52,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:02:52,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:02:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1798478548, now seen corresponding path program 1 times [2024-11-08 18:02:52,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:02:52,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614464226] [2024-11-08 18:02:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:52,835 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 [2024-11-08 18:02:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:02:52,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:02:52,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 (7)] Waiting until timeout for monitored process [2024-11-08 18:02:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:52,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:02:52,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:02:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 12 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 18:02:53,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:02:53,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:02:53,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614464226] [2024-11-08 18:02:53,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614464226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:02:53,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493952330] [2024-11-08 18:02:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:02:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:02:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:02:53,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:02:53,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:02:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:02:53,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:02:53,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:03:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-08 18:03:28,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:05:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:05:04,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493952330] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:05:04,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:05:04,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 10] total 25 [2024-11-08 18:05:04,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47084167] [2024-11-08 18:05:04,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:04,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:05:04,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:05:04,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:05:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:05:04,690 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:05:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:05:08,512 INFO L93 Difference]: Finished difference Result 102 states and 136 transitions. [2024-11-08 18:05:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:05:08,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71 [2024-11-08 18:05:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:05:08,518 INFO L225 Difference]: With dead ends: 102 [2024-11-08 18:05:08,518 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 18:05:08,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:05:08,520 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:05:08,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 291 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 18:05:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 18:05:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 71. [2024-11-08 18:05:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 58 states have internal predecessors, (75), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:05:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 97 transitions. [2024-11-08 18:05:08,529 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 97 transitions. Word has length 71 [2024-11-08 18:05:08,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:05:08,530 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 97 transitions. [2024-11-08 18:05:08,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:05:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 97 transitions. [2024-11-08 18:05:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 18:05:08,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:05:08,532 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:08,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:05:08,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:05:08,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:05:08,933 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:05:08,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash -601237112, now seen corresponding path program 1 times [2024-11-08 18:05:08,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:05:08,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320236328] [2024-11-08 18:05:08,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:08,934 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 [2024-11-08 18:05:08,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:05:08,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:05:08,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 (9)] Waiting until timeout for monitored process [2024-11-08 18:05:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:09,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:05:09,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-08 18:05:22,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:07:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-08 18:07:09,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:07:09,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320236328] [2024-11-08 18:07:09,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320236328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:07:09,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:07:09,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-11-08 18:07:09,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527615225] [2024-11-08 18:07:09,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:07:09,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:07:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:07:10,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:07:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:07:10,001 INFO L87 Difference]: Start difference. First operand 71 states and 97 transitions. Second operand has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 23 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:07:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:07:40,083 INFO L93 Difference]: Finished difference Result 177 states and 230 transitions. [2024-11-08 18:07:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:07:40,088 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 23 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 72 [2024-11-08 18:07:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:07:40,090 INFO L225 Difference]: With dead ends: 177 [2024-11-08 18:07:40,090 INFO L226 Difference]: Without dead ends: 109 [2024-11-08 18:07:40,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=352, Invalid=1369, Unknown=1, NotChecked=0, Total=1722 [2024-11-08 18:07:40,094 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 164 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:07:40,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 454 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-08 18:07:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-08 18:07:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 72. [2024-11-08 18:07:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 1.280701754385965) internal successors, (73), 58 states have internal predecessors, (73), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 18:07:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2024-11-08 18:07:40,109 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 72 [2024-11-08 18:07:40,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:07:40,110 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2024-11-08 18:07:40,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 23 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:07:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2024-11-08 18:07:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 18:07:40,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:07:40,112 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:07:40,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 (9)] Ended with exit code 0 [2024-11-08 18:07:40,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:07:40,313 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:07:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:07:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1222364979, now seen corresponding path program 1 times [2024-11-08 18:07:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:07:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490595114] [2024-11-08 18:07:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:07:40,314 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 [2024-11-08 18:07:40,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:07:40,316 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:07:40,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d0fef6f-9f28-4770-bd37-22c33bf53cae/bin/uautomizer-verify-jihMAELWvX/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 (10)] Waiting until timeout for monitored process [2024-11-08 18:07:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:07:40,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:07:40,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:07:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 123 proven. 24 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 18:07:44,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:09:58,420 WARN L286 SmtUtils]: Spent 13.56s on a formula simplification. DAG size of input: 203 DAG size of output: 201 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)