./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC --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 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:13:51,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:13:51,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:13:51,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:13:51,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:13:51,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:13:51,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:13:51,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:13:51,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:13:51,301 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:13:51,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:13:51,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:13:51,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:13:51,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:13:51,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:13:51,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:13:51,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:51,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:51,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:51,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:51,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:13:51,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:13:51,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:13:51,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:13:51,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:51,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:13:51,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:13:51,309 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:13:51,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:13:51,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:13:51,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:13:51,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:13:51,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:13:51,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:13:51,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:13:51,310 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC 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 -> 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 [2024-11-24 01:13:51,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:13:51,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:13:51,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:13:51,745 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:13:51,746 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:13:51,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-24 01:13:55,555 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/b9d3d6c93/cd7b453abf904b64a26dd5d54023b129/FLAGd959ca548 [2024-11-24 01:13:55,881 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:13:55,881 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-24 01:13:55,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/b9d3d6c93/cd7b453abf904b64a26dd5d54023b129/FLAGd959ca548 [2024-11-24 01:13:55,908 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/b9d3d6c93/cd7b453abf904b64a26dd5d54023b129 [2024-11-24 01:13:55,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:13:55,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:13:55,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:13:55,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:13:55,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:13:55,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:13:55" (1/1) ... [2024-11-24 01:13:55,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ea67f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:55, skipping insertion in model container [2024-11-24 01:13:55,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:13:55" (1/1) ... [2024-11-24 01:13:55,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:13:56,131 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_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-24 01:13:56,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:13:56,233 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:13:56,250 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_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-24 01:13:56,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:13:56,322 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:13:56,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56 WrapperNode [2024-11-24 01:13:56,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:13:56,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:13:56,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:13:56,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:13:56,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,423 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-24 01:13:56,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:13:56,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:13:56,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:13:56,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:13:56,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,478 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]. [2024-11-24 01:13:56,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:13:56,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:13:56,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:13:56,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:13:56,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (1/1) ... [2024-11-24 01:13:56,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:13:56,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:56,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:13:56,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:13:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:13:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:13:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:13:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:13:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:13:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:13:56,692 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:13:56,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:13:57,056 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-24 01:13:57,056 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:13:57,075 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:13:57,077 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:13:57,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:57 BoogieIcfgContainer [2024-11-24 01:13:57,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:13:57,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:13:57,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:13:57,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:13:57,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:13:55" (1/3) ... [2024-11-24 01:13:57,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7352dace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:57, skipping insertion in model container [2024-11-24 01:13:57,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:13:56" (2/3) ... [2024-11-24 01:13:57,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7352dace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:13:57, skipping insertion in model container [2024-11-24 01:13:57,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:57" (3/3) ... [2024-11-24 01:13:57,097 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-58.i [2024-11-24 01:13:57,122 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:13:57,124 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-58.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:13:57,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:13:57,238 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;@5b06f6fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:13:57,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:13:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 01:13:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:13:57,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:57,259 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:13:57,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:57,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-24 01:13:57,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:13:57,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761424761] [2024-11-24 01:13:57,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:13:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:13:57,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882329442] [2024-11-24 01:13:57,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:57,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:13:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:13:57,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:13:57,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:13:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:57,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:13:57,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 182 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-24 01:13:59,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:13:59,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:13:59,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761424761] [2024-11-24 01:13:59,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:13:59,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882329442] [2024-11-24 01:13:59,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882329442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:59,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:59,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:13:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991535418] [2024-11-24 01:13:59,529 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:13:59,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:13:59,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:13:59,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:13:59,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:13:59,563 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:14:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:00,899 INFO L93 Difference]: Finished difference Result 134 states and 224 transitions. [2024-11-24 01:14:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:14:00,902 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 81 [2024-11-24 01:14:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:00,914 INFO L225 Difference]: With dead ends: 134 [2024-11-24 01:14:00,914 INFO L226 Difference]: Without dead ends: 92 [2024-11-24 01:14:00,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:14:00,926 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:00,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 238 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:14:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-24 01:14:01,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2024-11-24 01:14:01,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:14:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2024-11-24 01:14:01,024 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 81 [2024-11-24 01:14:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:01,025 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2024-11-24 01:14:01,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 01:14:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2024-11-24 01:14:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:14:01,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:01,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:01,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:14:01,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:14:01,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:01,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:01,235 INFO L85 PathProgramCache]: Analyzing trace with hash 103058715, now seen corresponding path program 1 times [2024-11-24 01:14:01,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:01,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896519952] [2024-11-24 01:14:01,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:01,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:14:04,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:14:04,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896519952] [2024-11-24 01:14:04,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896519952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:04,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:04,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:14:04,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383909524] [2024-11-24 01:14:04,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:04,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:14:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:04,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:14:04,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:14:04,068 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:14:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:04,644 INFO L93 Difference]: Finished difference Result 103 states and 134 transitions. [2024-11-24 01:14:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:14:04,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-24 01:14:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:04,647 INFO L225 Difference]: With dead ends: 103 [2024-11-24 01:14:04,647 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 01:14:04,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:14:04,651 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:04,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 273 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:14:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 01:14:04,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 82. [2024-11-24 01:14:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:14:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2024-11-24 01:14:04,685 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 81 [2024-11-24 01:14:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:04,685 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2024-11-24 01:14:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:14:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2024-11-24 01:14:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:14:04,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:04,694 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:04,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:14:04,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash 104905757, now seen corresponding path program 1 times [2024-11-24 01:14:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:04,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195043818] [2024-11-24 01:14:04,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:04,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:14:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:14:04,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757679889] [2024-11-24 01:14:04,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:04,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:04,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:04,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:14:04,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:14:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:14:04,928 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:14:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:14:05,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:14:05,045 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:14:05,046 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:14:05,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:14:05,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:05,254 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 01:14:05,352 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:14:05,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:14:05 BoogieIcfgContainer [2024-11-24 01:14:05,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:14:05,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:14:05,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:14:05,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:14:05,358 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:13:57" (3/4) ... [2024-11-24 01:14:05,361 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:14:05,362 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:14:05,363 INFO L158 Benchmark]: Toolchain (without parser) took 9450.91ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 66.1MB in the end (delta: 51.2MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-24 01:14:05,363 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:14:05,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.71ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 104.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:14:05,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.03ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:14:05,365 INFO L158 Benchmark]: Boogie Preprocessor took 90.73ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:14:05,365 INFO L158 Benchmark]: RCFGBuilder took 562.69ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 83.7MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:14:05,365 INFO L158 Benchmark]: TraceAbstraction took 8273.03ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.1MB in the end (delta: 17.0MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-11-24 01:14:05,366 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 66.1MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:14:05,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.71ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 104.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.03ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.73ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.9MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.69ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 83.7MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8273.03ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.1MB in the end (delta: 17.0MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 66.1MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] signed long int var_1_2 = 8; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 100; [L26] float var_1_5 = 99999999999.5; [L27] unsigned char var_1_6 = 4; [L28] float var_1_7 = 63.75; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char last_1_var_1_1 = 64; [L32] unsigned char last_1_var_1_9 = 0; VAL [isInitial=0, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L94] isInitial = 1 [L95] FCALL initially() [L97] CALL updateLastVariables() [L86] last_1_var_1_1 = var_1_1 [L87] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=8, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L97] RET updateLastVariables() [L98] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L67] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L68] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=25, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L71] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=100, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L72] var_1_4 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_4 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L73] RET assume_abort_if_not(var_1_4 >= 63) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L74] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=4, var_1_7=255/4, var_1_9=0] [L75] var_1_6 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L76] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_6 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L77] RET assume_abort_if_not(var_1_6 <= 255) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_7=255/4, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L78] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_7=255/4, var_1_9=0] [L79] var_1_7 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L80] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L81] var_1_10 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L82] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L83] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L36] signed long int stepLocal_3 = last_1_var_1_1; [L37] signed long int stepLocal_2 = var_1_3 / var_1_6; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, stepLocal_3=64, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L38] COND TRUE var_1_3 < stepLocal_3 VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_2=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L39] COND FALSE !(var_1_4 < stepLocal_2) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L49] signed long int stepLocal_1 = var_1_2; [L50] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_1=-256, var_1_10=1, var_1_1=64, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L51] COND TRUE stepLocal_1 <= -256 [L52] var_1_1 = ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L60] unsigned char stepLocal_4 = (var_1_1 + 64u) != var_1_4; VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, stepLocal_4=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L61] COND FALSE !((var_1_5 >= var_1_7) || stepLocal_4) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, stepLocal_0=-256, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return (((var_1_2 <= -256) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((var_1_4 - 8) + 5))) ? (var_1_3) : (((var_1_4 - 8) + 5)))))) : ((var_1_4 <= var_1_2) ? (var_1_1 == ((unsigned char) var_1_3)) : (var_1_1 == ((unsigned char) var_1_3)))) && ((var_1_3 < last_1_var_1_1) ? ((var_1_4 < (var_1_3 / var_1_6)) ? (var_1_5 == ((float) (var_1_7 - 16.55f))) : 1) : (last_1_var_1_9 ? (var_1_5 == ((float) var_1_7)) : (var_1_5 == ((float) var_1_7))))) && (((var_1_5 >= var_1_7) || ((var_1_1 + 64u) != var_1_4)) ? (var_1_9 == ((unsigned char) var_1_10)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=64, last_1_var_1_9=0, var_1_10=1, var_1_1=0, var_1_2=-256, var_1_3=-256, var_1_4=64, var_1_5=199999999999/2, var_1_6=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 511 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 430 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 81 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=2, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 160 ConstructedInterpolants, 2 QuantifiedInterpolants, 1069 SizeOfPredicates, 5 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 501/528 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:14:05,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC --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 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:14:08,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:14:08,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:14:08,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:14:08,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:14:08,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:14:08,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:14:08,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:14:08,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:14:08,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:14:08,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:14:08,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:14:08,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:14:08,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:14:08,900 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:14:08,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:14:08,902 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:14:08,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:14:08,904 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:14:08,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:14:08,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:14:08,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:14:08,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:14:08,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:14:08,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:14:08,906 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:14:08,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:14:08,906 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:14:08,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:08,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:14:08,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:14:08,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:14:08,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:14:08,909 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC 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 -> 8bff6c0f8e15029ad0c69d66a327b450bc06692e04fabba5a0800800584ec965 [2024-11-24 01:14:09,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:14:09,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:14:09,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:14:09,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:14:09,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:14:09,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-24 01:14:12,458 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/1bfa484de/942ed6deb431409fb9f4e12461722524/FLAG3de40415a [2024-11-24 01:14:12,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:14:12,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i [2024-11-24 01:14:12,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/1bfa484de/942ed6deb431409fb9f4e12461722524/FLAG3de40415a [2024-11-24 01:14:13,063 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/data/1bfa484de/942ed6deb431409fb9f4e12461722524 [2024-11-24 01:14:13,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:14:13,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:14:13,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:14:13,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:14:13,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:14:13,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d96c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13, skipping insertion in model container [2024-11-24 01:14:13,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:14:13,280 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_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-24 01:14:13,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:14:13,368 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:14:13,380 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_4b18de6d-2654-4a0a-bc79-dcb46c633622/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-58.i[915,928] [2024-11-24 01:14:13,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:14:13,442 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:14:13,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13 WrapperNode [2024-11-24 01:14:13,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:14:13,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:14:13,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:14:13,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:14:13,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,512 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-24 01:14:13,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:14:13,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:14:13,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:14:13,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:14:13,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,547 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]. [2024-11-24 01:14:13,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,560 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:14:13,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:14:13,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:14:13,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:14:13,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (1/1) ... [2024-11-24 01:14:13,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:14:13,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:14:13,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:14:13,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:14:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:14:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:14:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:14:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:14:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:14:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:14:13,736 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:14:13,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:14:14,200 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-24 01:14:14,200 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:14:14,217 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:14:14,218 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:14:14,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:14:14 BoogieIcfgContainer [2024-11-24 01:14:14,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:14:14,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:14:14,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:14:14,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:14:14,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:14:13" (1/3) ... [2024-11-24 01:14:14,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:14:14, skipping insertion in model container [2024-11-24 01:14:14,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:14:13" (2/3) ... [2024-11-24 01:14:14,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:14:14, skipping insertion in model container [2024-11-24 01:14:14,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:14:14" (3/3) ... [2024-11-24 01:14:14,239 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-58.i [2024-11-24 01:14:14,261 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:14:14,264 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-58.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:14:14,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:14:14,345 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;@785f075d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:14:14,345 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:14:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 01:14:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:14:14,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:14,364 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:14,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:14,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash -576999655, now seen corresponding path program 1 times [2024-11-24 01:14:14,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:14,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766991549] [2024-11-24 01:14:14,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:14,388 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 [2024-11-24 01:14:14,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:14,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:14:14,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:14:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:14,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:14:14,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 01:14:17,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:50,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:50,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766991549] [2024-11-24 01:14:50,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766991549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:50,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1700369340] [2024-11-24 01:14:50,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:50,259 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:14:50,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:14:50,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-24 01:14:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:50,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:14:50,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 181 proven. 36 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-24 01:15:29,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:17:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1700369340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:17:39,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:17:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 21] total 34 [2024-11-24 01:17:39,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758228709] [2024-11-24 01:17:39,233 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:17:39,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 01:17:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:17:39,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 01:17:39,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=2282, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 01:17:39,266 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 31 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 35 states, 35 states have (on average 2.2) internal successors, (77), 32 states have internal predecessors, (77), 8 states have call successors, (24), 8 states have call predecessors, (24), 12 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-24 01:18:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:18:26,151 INFO L93 Difference]: Finished difference Result 158 states and 254 transitions. [2024-11-24 01:18:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:18:26,162 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.2) internal successors, (77), 32 states have internal predecessors, (77), 8 states have call successors, (24), 8 states have call predecessors, (24), 12 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 81 [2024-11-24 01:18:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:18:26,172 INFO L225 Difference]: With dead ends: 158 [2024-11-24 01:18:26,172 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 01:18:26,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1529 ImplicationChecksByTransitivity, 157.9s TimeCoverageRelationStatistics Valid=925, Invalid=4775, Unknown=0, NotChecked=0, Total=5700 [2024-11-24 01:18:26,190 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 217 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:18:26,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 456 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-24 01:18:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 01:18:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 87. [2024-11-24 01:18:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:18:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2024-11-24 01:18:26,279 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 81 [2024-11-24 01:18:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:18:26,282 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2024-11-24 01:18:26,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.2) internal successors, (77), 32 states have internal predecessors, (77), 8 states have call successors, (24), 8 states have call predecessors, (24), 12 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-24 01:18:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2024-11-24 01:18:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:18:26,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:18:26,287 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:18:26,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-24 01:18:26,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:18:26,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:18:26,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:18:26,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:18:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash 103058715, now seen corresponding path program 1 times [2024-11-24 01:18:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:18:26,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981195195] [2024-11-24 01:18:26,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:26,692 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 [2024-11-24 01:18:26,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:18:26,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:18:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:18:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:26,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:18:26,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:18:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 01:18:48,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:19:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:19:21,354 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:19:21,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981195195] [2024-11-24 01:19:21,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981195195] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:19:21,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:19:21,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2024-11-24 01:19:21,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900233351] [2024-11-24 01:19:21,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:19:21,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:19:21,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:19:21,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:19:21,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:19:21,358 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:19:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:19:26,091 INFO L93 Difference]: Finished difference Result 115 states and 143 transitions. [2024-11-24 01:19:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:19:26,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-24 01:19:26,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:19:26,100 INFO L225 Difference]: With dead ends: 115 [2024-11-24 01:19:26,100 INFO L226 Difference]: Without dead ends: 113 [2024-11-24 01:19:26,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:19:26,102 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 46 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:19:26,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 282 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:19:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-24 01:19:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 94. [2024-11-24 01:19:26,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 62 states have internal predecessors, (72), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:19:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2024-11-24 01:19:26,125 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 81 [2024-11-24 01:19:26,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:19:26,126 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2024-11-24 01:19:26,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:19:26,127 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2024-11-24 01:19:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:19:26,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:19:26,129 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:19:26,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:19:26,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:19:26,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:19:26,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:19:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 104905757, now seen corresponding path program 1 times [2024-11-24 01:19:26,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:19:26,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273468025] [2024-11-24 01:19:26,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:19:26,332 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 [2024-11-24 01:19:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:19:26,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:19:26,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:19:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:19:26,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:19:26,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:19:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 177 proven. 24 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-24 01:19:46,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:20:15,756 WARN L286 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:20:22,256 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:20:22,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:20:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273468025] [2024-11-24 01:20:22,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273468025] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:20:22,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:20:22,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 28 [2024-11-24 01:20:22,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829370007] [2024-11-24 01:20:22,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:20:22,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:20:22,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:20:22,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:20:22,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:20:22,259 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:20:33,260 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:20:38,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:20:38,918 INFO L93 Difference]: Finished difference Result 111 states and 139 transitions. [2024-11-24 01:20:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:20:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-24 01:20:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:20:38,924 INFO L225 Difference]: With dead ends: 111 [2024-11-24 01:20:38,924 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 01:20:38,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=200, Invalid=792, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:20:38,926 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:20:38,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 339 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 01:20:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 01:20:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2024-11-24 01:20:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 65 states have internal predecessors, (77), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:20:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2024-11-24 01:20:38,946 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 81 [2024-11-24 01:20:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:20:38,946 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2024-11-24 01:20:38,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:20:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2024-11-24 01:20:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:20:38,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:20:38,951 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:20:38,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:20:39,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:20:39,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:20:39,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:20:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash 571125785, now seen corresponding path program 1 times [2024-11-24 01:20:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:20:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598061426] [2024-11-24 01:20:39,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:20:39,153 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 [2024-11-24 01:20:39,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:20:39,155 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:20:39,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 01:20:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:20:39,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:20:39,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:20:39,746 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:20:39,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:20:39,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:20:39,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598061426] [2024-11-24 01:20:39,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598061426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:20:39,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:20:39,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:20:39,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130332229] [2024-11-24 01:20:39,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:20:39,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:20:39,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:20:39,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:20:39,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:20:39,749 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:20:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:20:40,157 INFO L93 Difference]: Finished difference Result 208 states and 281 transitions. [2024-11-24 01:20:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:20:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2024-11-24 01:20:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:20:40,160 INFO L225 Difference]: With dead ends: 208 [2024-11-24 01:20:40,160 INFO L226 Difference]: Without dead ends: 160 [2024-11-24 01:20:40,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:20:40,161 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 57 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:20:40,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 173 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:20:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-24 01:20:40,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 143. [2024-11-24 01:20:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 98 states have internal predecessors, (120), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:20:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 192 transitions. [2024-11-24 01:20:40,187 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 192 transitions. Word has length 81 [2024-11-24 01:20:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:20:40,188 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 192 transitions. [2024-11-24 01:20:40,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:20:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 192 transitions. [2024-11-24 01:20:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:20:40,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:20:40,190 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:20:40,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:20:40,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:20:40,391 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:20:40,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:20:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1251184155, now seen corresponding path program 1 times [2024-11-24 01:20:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:20:40,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640293218] [2024-11-24 01:20:40,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:20:40,391 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 [2024-11-24 01:20:40,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:20:40,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:20:40,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:20:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:20:40,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:20:40,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:20:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-24 01:20:53,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:24,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:22:24,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640293218] [2024-11-24 01:22:24,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640293218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:24,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1495993938] [2024-11-24 01:22:24,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:24,002 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:22:24,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:22:24,005 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:22:24,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-24 01:22:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:24,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:22:24,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 181 proven. 36 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-24 01:23:16,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1495993938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:54,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:24:54,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20] total 31 [2024-11-24 01:24:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035500400] [2024-11-24 01:24:54,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:54,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 01:24:54,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:24:54,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 01:24:54,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1709, Unknown=3, NotChecked=0, Total=1980 [2024-11-24 01:24:54,441 INFO L87 Difference]: Start difference. First operand 143 states and 192 transitions. Second operand has 32 states, 32 states have (on average 2.0625) internal successors, (66), 30 states have internal predecessors, (66), 6 states have call successors, (24), 6 states have call predecessors, (24), 9 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-24 01:25:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:42,928 INFO L93 Difference]: Finished difference Result 283 states and 383 transitions. [2024-11-24 01:25:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 01:25:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.0625) internal successors, (66), 30 states have internal predecessors, (66), 6 states have call successors, (24), 6 states have call predecessors, (24), 9 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 81 [2024-11-24 01:25:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:42,938 INFO L225 Difference]: With dead ends: 283 [2024-11-24 01:25:42,938 INFO L226 Difference]: Without dead ends: 189 [2024-11-24 01:25:42,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 196.5s TimeCoverageRelationStatistics Valid=728, Invalid=3825, Unknown=3, NotChecked=0, Total=4556 [2024-11-24 01:25:42,942 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 109 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:42,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 556 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-24 01:25:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-24 01:25:42,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 151. [2024-11-24 01:25:42,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 106 states have internal predecessors, (130), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:25:42,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2024-11-24 01:25:42,973 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 81 [2024-11-24 01:25:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:42,974 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2024-11-24 01:25:42,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.0625) internal successors, (66), 30 states have internal predecessors, (66), 6 states have call successors, (24), 6 states have call predecessors, (24), 9 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-24 01:25:42,975 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2024-11-24 01:25:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:25:42,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:42,977 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:42,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-24 01:25:43,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:25:43,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:25:43,378 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:43,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1254185171, now seen corresponding path program 1 times [2024-11-24 01:25:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:25:43,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911944995] [2024-11-24 01:25:43,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:43,379 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 [2024-11-24 01:25:43,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:25:43,381 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:25:43,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:25:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:43,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:25:43,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 01:26:14,848 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:26:49,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:26:49,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911944995] [2024-11-24 01:26:49,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911944995] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:49,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:49,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2024-11-24 01:26:49,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455152961] [2024-11-24 01:26:49,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:26:49,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:26:49,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:26:49,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:26:49,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:26:49,575 INFO L87 Difference]: Start difference. First operand 151 states and 202 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:26:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:55,299 INFO L93 Difference]: Finished difference Result 186 states and 239 transitions. [2024-11-24 01:26:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:26:55,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82 [2024-11-24 01:26:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:55,309 INFO L225 Difference]: With dead ends: 186 [2024-11-24 01:26:55,310 INFO L226 Difference]: Without dead ends: 184 [2024-11-24 01:26:55,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:26:55,311 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 38 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:55,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 264 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:26:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-24 01:26:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 151. [2024-11-24 01:26:55,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 106 states have internal predecessors, (130), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:26:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 202 transitions. [2024-11-24 01:26:55,336 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 202 transitions. Word has length 82 [2024-11-24 01:26:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:55,337 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 202 transitions. [2024-11-24 01:26:55,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:26:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2024-11-24 01:26:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:26:55,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:55,339 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:55,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:26:55,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:26:55,539 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:26:55,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:55,540 INFO L85 PathProgramCache]: Analyzing trace with hash 520822191, now seen corresponding path program 1 times [2024-11-24 01:26:55,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:26:55,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520510672] [2024-11-24 01:26:55,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:55,540 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 [2024-11-24 01:26:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:26:55,542 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:26:55,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:26:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:55,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:26:55,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 179 proven. 39 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-24 01:27:17,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:27:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-24 01:27:55,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:27:55,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520510672] [2024-11-24 01:27:55,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520510672] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:27:55,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:27:55,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21] total 31 [2024-11-24 01:27:55,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050739673] [2024-11-24 01:27:55,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:27:55,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:27:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:27:55,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:27:55,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:27:55,835 INFO L87 Difference]: Start difference. First operand 151 states and 202 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:28:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:28:01,613 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2024-11-24 01:28:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:28:01,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82 [2024-11-24 01:28:01,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:28:01,621 INFO L225 Difference]: With dead ends: 182 [2024-11-24 01:28:01,621 INFO L226 Difference]: Without dead ends: 180 [2024-11-24 01:28:01,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=224, Invalid=1036, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 01:28:01,622 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 63 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:28:01,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 248 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 01:28:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-24 01:28:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 147. [2024-11-24 01:28:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 102 states have (on average 1.2156862745098038) internal successors, (124), 102 states have internal predecessors, (124), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:28:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2024-11-24 01:28:01,647 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 196 transitions. Word has length 82 [2024-11-24 01:28:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:28:01,647 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 196 transitions. [2024-11-24 01:28:01,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-24 01:28:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 196 transitions. [2024-11-24 01:28:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:28:01,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:28:01,649 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:28:01,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-24 01:28:01,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:28:01,849 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:28:01,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:28:01,850 INFO L85 PathProgramCache]: Analyzing trace with hash -22034899, now seen corresponding path program 1 times [2024-11-24 01:28:01,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:28:01,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81602174] [2024-11-24 01:28:01,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:28:01,850 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 [2024-11-24 01:28:01,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:28:01,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:28:01,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b18de6d-2654-4a0a-bc79-dcb46c633622/bin/uautomizer-verify-LYvppIcaGC/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 (11)] Waiting until timeout for monitored process [2024-11-24 01:28:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:28:01,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:28:01,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:28:28,514 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-24 01:28:28,514 INFO L312 TraceCheckSpWp]: Computing backward predicates...