./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB --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 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:03,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:03,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:03,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:03,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:04,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:04,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:04,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:04,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:04,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:04,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:04,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:04,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:04,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:04,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:04,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:04,010 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:04,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:04,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:04,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:04,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:04,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:04,013 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_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 [2024-11-28 02:07:04,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:04,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:04,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:04,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:04,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:04,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:07,475 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/d3f29d955/17b25b7530664c6695ac8e1827de24f9/FLAG251ef68bf [2024-11-28 02:07:07,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:07,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:07,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/d3f29d955/17b25b7530664c6695ac8e1827de24f9/FLAG251ef68bf [2024-11-28 02:07:07,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/d3f29d955/17b25b7530664c6695ac8e1827de24f9 [2024-11-28 02:07:07,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:07,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:07,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:07,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:07,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:07,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:07" (1/1) ... [2024-11-28 02:07:07,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756f7b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:07, skipping insertion in model container [2024-11-28 02:07:07,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:07" (1/1) ... [2024-11-28 02:07:07,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:08,038 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_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2024-11-28 02:07:08,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:08,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:08,094 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_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2024-11-28 02:07:08,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:08,127 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:08,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08 WrapperNode [2024-11-28 02:07:08,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:08,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:08,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:08,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:08,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,180 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-28 02:07:08,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:08,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:08,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:08,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:08,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,219 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]. [2024-11-28 02:07:08,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,225 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:08,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:08,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:08,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:08,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (1/1) ... [2024-11-28 02:07:08,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:08,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:08,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:08,383 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:08,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:08,673 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:08,674 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:08,694 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:08,695 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:08,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:08 BoogieIcfgContainer [2024-11-28 02:07:08,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:08,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:08,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:08,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:08,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:07" (1/3) ... [2024-11-28 02:07:08,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68960049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:08, skipping insertion in model container [2024-11-28 02:07:08,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:08" (2/3) ... [2024-11-28 02:07:08,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68960049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:08, skipping insertion in model container [2024-11-28 02:07:08,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:08" (3/3) ... [2024-11-28 02:07:08,711 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:08,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:08,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-50.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:08,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:08,826 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;@4350a466, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:08,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 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) [2024-11-28 02:07:08,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:07:08,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:08,846 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] [2024-11-28 02:07:08,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1715386766, now seen corresponding path program 1 times [2024-11-28 02:07:08,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:08,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517369917] [2024-11-28 02:07:08,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:09,165 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 02:07:09,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517369917] [2024-11-28 02:07:09,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517369917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:09,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568784957] [2024-11-28 02:07:09,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:09,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:09,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:09,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:09,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:09,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-28 02:07:09,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:09,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568784957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:09,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:09,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:07:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742862146] [2024-11-28 02:07:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:09,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:09,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:09,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:09,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:09,427 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:07:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:09,480 INFO L93 Difference]: Finished difference Result 73 states and 118 transitions. [2024-11-28 02:07:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:09,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 77 [2024-11-28 02:07:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:09,492 INFO L225 Difference]: With dead ends: 73 [2024-11-28 02:07:09,492 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 02:07:09,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:09,501 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:09,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 02:07:09,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 02:07:09,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2024-11-28 02:07:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-28 02:07:09,542 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 77 [2024-11-28 02:07:09,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:09,543 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-28 02:07:09,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:07:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-28 02:07:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:07:09,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:09,548 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] [2024-11-28 02:07:09,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:07:09,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:07:09,750 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:09,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 321635914, now seen corresponding path program 1 times [2024-11-28 02:07:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116485554] [2024-11-28 02:07:09,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:09,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:07:09,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957715564] [2024-11-28 02:07:09,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:09,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:09,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:09,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:09,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:10,081 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:10,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:10,199 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:10,200 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:07:10,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:10,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:10,407 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:07:10,460 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:10,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:10 BoogieIcfgContainer [2024-11-28 02:07:10,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:10,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:10,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:10,465 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:10,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:08" (3/4) ... [2024-11-28 02:07:10,468 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:07:10,469 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:10,470 INFO L158 Benchmark]: Toolchain (without parser) took 2652.15ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 69.5MB in the end (delta: 25.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-28 02:07:10,470 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:10,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.43ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 82.3MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:10,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.53ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:10,471 INFO L158 Benchmark]: Boogie Preprocessor took 55.22ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:10,472 INFO L158 Benchmark]: RCFGBuilder took 459.05ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 66.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:10,472 INFO L158 Benchmark]: TraceAbstraction took 1764.43ms. Allocated memory is still 117.4MB. Free memory was 66.0MB in the beginning and 70.1MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:10,472 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 69.5MB in the end (delta: 602.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:10,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.43ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 82.3MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.53ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.22ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 459.05ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 66.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1764.43ms. Allocated memory is still 117.4MB. Free memory was 66.0MB in the beginning and 70.1MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 69.5MB in the end (delta: 602.3kB). 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 someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of someBinaryDOUBLEComparisonOperation at line 33. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 5; [L23] double var_1_2 = 99999.67; [L24] double var_1_3 = -0.05; [L25] signed short int var_1_4 = 128; [L26] signed short int var_1_5 = 128; [L27] signed long int var_1_6 = -10; [L28] double var_1_7 = 8.6; [L29] unsigned char var_1_8 = 1; VAL [isInitial=0, var_1_1=5, var_1_2=9999967/100, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L72] isInitial = 1 [L73] FCALL initially() [L75] FCALL updateLastVariables() [L76] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L46] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L47] var_1_3 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L48] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=128, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L49] var_1_4 = __VERIFIER_nondet_short() [L50] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L50] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L51] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L51] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=128, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L52] var_1_5 = __VERIFIER_nondet_short() [L53] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L53] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L54] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L54] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L55] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L55] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=-10, var_1_7=43/5, var_1_8=1] [L56] var_1_6 = __VERIFIER_nondet_long() [L57] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L57] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L58] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L58] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_7=43/5, var_1_8=1] [L59] var_1_7 = __VERIFIER_nondet_double() [L60] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=1] [L60] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=1] [L61] var_1_8 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1] [L62] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1] [L63] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L63] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L76] RET updateVariables() [L77] CALL step() [L33] unsigned char stepLocal_0 = ((((63.6) < (var_1_2)) ? (63.6) : (var_1_2))) != var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_1=5, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L34] COND FALSE !(stepLocal_0 && ((var_1_4 / var_1_5) < var_1_6)) [L41] var_1_1 = 10 VAL [isInitial=1, var_1_1=10, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L77] RET step() [L78] CALL, EXPR property() [L68-L69] return ((((((63.6) < (var_1_2)) ? (63.6) : (var_1_2))) != var_1_3) && ((var_1_4 / var_1_5) < var_1_6)) ? ((var_1_3 >= (var_1_2 + var_1_7)) ? (var_1_1 == ((unsigned char) var_1_8)) : (var_1_1 == ((unsigned char) var_1_8))) : (var_1_1 == ((unsigned char) 10)) ; VAL [\result=0, isInitial=1, var_1_1=10, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L78] RET, EXPR property() [L78] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=10, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] [L19] reach_error() VAL [isInitial=1, var_1_1=10, var_1_4=1, var_1_5=2, var_1_6=1, var_1_8=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 49 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 506/528 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 [2024-11-28 02:07:10,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB --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 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:13,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:13,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:07:13,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:13,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:13,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:13,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:13,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:13,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:13,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:13,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:13,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:13,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:13,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:13,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:13,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:13,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:13,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:13,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:13,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:13,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:13,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:13,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:13,540 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:13,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:13,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:13,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:13,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:13,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:13,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:13,542 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_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 31c38fc0029b15eea235546e14c5b61b4e70b436ee39f6c640a47d6a6b4e9a18 [2024-11-28 02:07:13,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:13,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:13,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:13,904 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:13,905 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:13,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:17,084 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/847e22c69/b3ef58865a724403938f6c78a20ddbae/FLAG1a3de7854 [2024-11-28 02:07:17,411 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:17,413 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:17,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/847e22c69/b3ef58865a724403938f6c78a20ddbae/FLAG1a3de7854 [2024-11-28 02:07:17,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/data/847e22c69/b3ef58865a724403938f6c78a20ddbae [2024-11-28 02:07:17,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:17,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:17,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:17,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:17,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:17,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a473963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17, skipping insertion in model container [2024-11-28 02:07:17,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:17,695 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_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2024-11-28 02:07:17,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:17,778 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:17,793 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_56c651be-619d-476a-a4a2-8d04dbf999d0/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-50.i[915,928] [2024-11-28 02:07:17,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:17,861 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:17,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17 WrapperNode [2024-11-28 02:07:17,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:17,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:17,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:17,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:17,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,918 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2024-11-28 02:07:17,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:17,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:17,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:17,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:17,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,947 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]. [2024-11-28 02:07:17,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:17,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:17,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:17,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:17,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (1/1) ... [2024-11-28 02:07:17,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:18,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:18,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:18,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:07:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:18,151 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:18,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:18,875 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-28 02:07:18,875 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:18,890 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:18,890 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:07:18,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:18 BoogieIcfgContainer [2024-11-28 02:07:18,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:18,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:18,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:18,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:18,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:17" (1/3) ... [2024-11-28 02:07:18,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e111b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:18, skipping insertion in model container [2024-11-28 02:07:18,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:17" (2/3) ... [2024-11-28 02:07:18,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e111b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:18, skipping insertion in model container [2024-11-28 02:07:18,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:18" (3/3) ... [2024-11-28 02:07:18,906 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-50.i [2024-11-28 02:07:18,927 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:18,929 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-50.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:07:19,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:19,042 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;@333ef336, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:19,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:07:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 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) [2024-11-28 02:07:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:07:19,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:19,064 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] [2024-11-28 02:07:19,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:19,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1715386766, now seen corresponding path program 1 times [2024-11-28 02:07:19,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:19,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341663642] [2024-11-28 02:07:19,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:19,095 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 [2024-11-28 02:07:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:19,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:07:19,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:19,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:07:19,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 02:07:19,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:19,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:19,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341663642] [2024-11-28 02:07:19,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341663642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:19,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:19,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899582092] [2024-11-28 02:07:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:19,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:07:19,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:19,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:07:19,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:19,549 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 26 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:07:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:19,575 INFO L93 Difference]: Finished difference Result 73 states and 118 transitions. [2024-11-28 02:07:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:07:19,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 77 [2024-11-28 02:07:19,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:19,585 INFO L225 Difference]: With dead ends: 73 [2024-11-28 02:07:19,585 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 02:07:19,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:07:19,593 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:19,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:07:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 02:07:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 02:07:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2024-11-28 02:07:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-28 02:07:19,645 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 77 [2024-11-28 02:07:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:19,645 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-28 02:07:19,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 02:07:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-28 02:07:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:07:19,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:19,652 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] [2024-11-28 02:07:19,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:19,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:19,853 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:19,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 321635914, now seen corresponding path program 1 times [2024-11-28 02:07:19,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:19,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182542056] [2024-11-28 02:07:19,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:19,855 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 [2024-11-28 02:07:19,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:19,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:07:19,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 02:07:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:20,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:07:20,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:07:23,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:23,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182542056] [2024-11-28 02:07:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182542056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:23,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:23,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:23,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239021887] [2024-11-28 02:07:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:23,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:23,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:23,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:23,832 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-28 02:07:26,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:26,423 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2024-11-28 02:07:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 77 [2024-11-28 02:07:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:26,430 INFO L225 Difference]: With dead ends: 44 [2024-11-28 02:07:26,430 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 02:07:26,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:26,431 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 5 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:26,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 199 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 02:07:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 02:07:26,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-28 02:07:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 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) [2024-11-28 02:07:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2024-11-28 02:07:26,443 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 77 [2024-11-28 02:07:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:26,445 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-11-28 02:07:26,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-28 02:07:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-28 02:07:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 02:07:26,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:07:26,448 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] [2024-11-28 02:07:26,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 02:07:26,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:26,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:07:26,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1145218415, now seen corresponding path program 1 times [2024-11-28 02:07:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:07:26,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379167193] [2024-11-28 02:07:26,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,651 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 [2024-11-28 02:07:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:07:26,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:07:26,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:26,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:07:26,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 02:07:29,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:29,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:07:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379167193] [2024-11-28 02:07:29,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379167193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:29,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:29,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:07:29,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070436407] [2024-11-28 02:07:29,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:29,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:07:29,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:07:29,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:07:29,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:07:29,674 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-28 02:07:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:07:32,685 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2024-11-28 02:07:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:07:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 78 [2024-11-28 02:07:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:07:32,695 INFO L225 Difference]: With dead ends: 42 [2024-11-28 02:07:32,695 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:07:32,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:07:32,696 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:07:32,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 194 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 02:07:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:07:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:07:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:07:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:07:32,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-11-28 02:07:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:07:32,701 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:07:32,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-28 02:07:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:07:32,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:07:32,705 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:07:32,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:32,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:07:32,913 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 02:07:32,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:07:32,942 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:07:32,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:07:32 BoogieIcfgContainer [2024-11-28 02:07:32,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:07:32,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:07:32,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:07:32,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:07:32,959 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:18" (3/4) ... [2024-11-28 02:07:32,962 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:07:32,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 02:07:32,975 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 02:07:32,976 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:07:32,977 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:07:32,977 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:07:33,076 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:07:33,077 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:07:33,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:07:33,079 INFO L158 Benchmark]: Toolchain (without parser) took 15619.40ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 60.4MB in the beginning and 42.0MB in the end (delta: 18.4MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,079 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:33,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.17ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 47.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.29ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,081 INFO L158 Benchmark]: Boogie Preprocessor took 49.94ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:07:33,081 INFO L158 Benchmark]: RCFGBuilder took 917.62ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 32.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,082 INFO L158 Benchmark]: TraceAbstraction took 14060.69ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 31.5MB in the beginning and 46.6MB in the end (delta: -15.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,083 INFO L158 Benchmark]: Witness Printer took 119.41ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 42.0MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:07:33,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.17ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 47.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.29ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.94ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 917.62ms. Allocated memory is still 83.9MB. Free memory was 44.5MB in the beginning and 32.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14060.69ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 31.5MB in the beginning and 46.6MB in the end (delta: -15.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 119.41ms. Allocated memory is still 117.4MB. Free memory was 46.6MB in the beginning and 42.0MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 301 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 141 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 16 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 792/792 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:07:33,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56c651be-619d-476a-a4a2-8d04dbf999d0/bin/uautomizer-verify-aQ6SnzHsRB/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 Writing output log to file Ultimate.log Result: TRUE