./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.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_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:17:06,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:17:06,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:17:06,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:17:06,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:17:06,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:17:06,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:17:06,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:17:06,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:17:06,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:17:06,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:17:06,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:17:06,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:17:06,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:17:06,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:06,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:06,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:17:06,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:17:06,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:17:06,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:17:06,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:17:06,256 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_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2024-12-01 13:17:06,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:17:06,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:17:06,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:17:06,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:17:06,493 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:17:06,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:09,214 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/4c6bbd02b/12b61748cf8f4ebeba06b85ed82f00e2/FLAGcdbbd991a [2024-12-01 13:17:09,424 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:17:09,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:09,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/4c6bbd02b/12b61748cf8f4ebeba06b85ed82f00e2/FLAGcdbbd991a [2024-12-01 13:17:09,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/4c6bbd02b/12b61748cf8f4ebeba06b85ed82f00e2 [2024-12-01 13:17:09,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:17:09,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:17:09,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:17:09,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:17:09,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:17:09,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aea065d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09, skipping insertion in model container [2024-12-01 13:17:09,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:17:09,596 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_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2024-12-01 13:17:09,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:17:09,652 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:17:09,662 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_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2024-12-01 13:17:09,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:17:09,701 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:17:09,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09 WrapperNode [2024-12-01 13:17:09,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:17:09,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:17:09,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:17:09,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:17:09,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,737 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2024-12-01 13:17:09,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:17:09,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:17:09,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:17:09,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:17:09,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,757 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 13:17:09,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,764 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:17:09,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:17:09,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:17:09,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:17:09,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (1/1) ... [2024-12-01 13:17:09,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:09,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:09,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:17:09,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:17:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:17:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:17:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:17:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:17:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:17:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:17:09,902 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:17:09,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:17:10,181 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-01 13:17:10,181 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:17:10,190 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:17:10,190 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:17:10,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:17:10 BoogieIcfgContainer [2024-12-01 13:17:10,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:17:10,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:17:10,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:17:10,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:17:10,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:17:09" (1/3) ... [2024-12-01 13:17:10,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7710a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:17:10, skipping insertion in model container [2024-12-01 13:17:10,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:09" (2/3) ... [2024-12-01 13:17:10,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7710a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:17:10, skipping insertion in model container [2024-12-01 13:17:10,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:17:10" (3/3) ... [2024-12-01 13:17:10,199 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:10,210 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:17:10,211 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-9.i that has 2 procedures, 84 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:17:10,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:17:10,264 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;@1643abfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:17:10,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:17:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 61 states have internal predecessors, (83), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-01 13:17:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-01 13:17:10,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:10,278 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:10,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:10,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:10,283 INFO L85 PathProgramCache]: Analyzing trace with hash -233058685, now seen corresponding path program 1 times [2024-12-01 13:17:10,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:10,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189809794] [2024-12-01 13:17:10,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:10,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-12-01 13:17:10,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:10,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189809794] [2024-12-01 13:17:10,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189809794] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063425320] [2024-12-01 13:17:10,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:10,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:10,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:10,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:17:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:10,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:17:10,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-12-01 13:17:10,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:17:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063425320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:10,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:17:10,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-01 13:17:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564709589] [2024-12-01 13:17:10,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:10,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:17:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:10,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:17:10,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:17:10,711 INFO L87 Difference]: Start difference. First operand has 84 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 61 states have internal predecessors, (83), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-01 13:17:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:10,730 INFO L93 Difference]: Finished difference Result 161 states and 265 transitions. [2024-12-01 13:17:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:17:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 143 [2024-12-01 13:17:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:10,737 INFO L225 Difference]: With dead ends: 161 [2024-12-01 13:17:10,737 INFO L226 Difference]: Without dead ends: 80 [2024-12-01 13:17:10,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:17:10,741 INFO L435 NwaCegarLoop]: 118 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, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:10,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-01 13:17:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-01 13:17:10,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-01 13:17:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2024-12-01 13:17:10,771 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 143 [2024-12-01 13:17:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:10,772 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2024-12-01 13:17:10,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-01 13:17:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2024-12-01 13:17:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-01 13:17:10,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:10,774 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:10,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:17:10,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-01 13:17:10,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:10,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash -859617335, now seen corresponding path program 1 times [2024-12-01 13:17:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991381102] [2024-12-01 13:17:10,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-01 13:17:11,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:11,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991381102] [2024-12-01 13:17:11,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991381102] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:11,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:11,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959488590] [2024-12-01 13:17:11,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:11,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:11,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:11,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:11,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:11,226 INFO L87 Difference]: Start difference. First operand 80 states and 118 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:11,248 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2024-12-01 13:17:11,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:11,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 143 [2024-12-01 13:17:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:11,251 INFO L225 Difference]: With dead ends: 158 [2024-12-01 13:17:11,251 INFO L226 Difference]: Without dead ends: 81 [2024-12-01 13:17:11,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:11,252 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:11,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:11,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-12-01 13:17:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-12-01 13:17:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 58 states have internal predecessors, (77), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-01 13:17:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions. [2024-12-01 13:17:11,264 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 143 [2024-12-01 13:17:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:11,265 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions. [2024-12-01 13:17:11,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions. [2024-12-01 13:17:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:17:11,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:11,267 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:11,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:17:11,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:11,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:11,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1358312091, now seen corresponding path program 1 times [2024-12-01 13:17:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:11,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527174736] [2024-12-01 13:17:11,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:11,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-01 13:17:13,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:13,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527174736] [2024-12-01 13:17:13,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527174736] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:13,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624247943] [2024-12-01 13:17:13,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:13,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:13,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:13,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:13,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:17:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:13,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-01 13:17:13,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 456 proven. 54 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-12-01 13:17:13,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-01 13:17:13,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624247943] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:17:13,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:17:13,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 15 [2024-12-01 13:17:13,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247376395] [2024-12-01 13:17:13,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:17:13,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:17:13,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:13,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:17:13,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:17:13,977 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 5 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) [2024-12-01 13:17:15,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:15,205 INFO L93 Difference]: Finished difference Result 248 states and 350 transitions. [2024-12-01 13:17:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:17:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 5 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) Word has length 144 [2024-12-01 13:17:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:15,208 INFO L225 Difference]: With dead ends: 248 [2024-12-01 13:17:15,208 INFO L226 Difference]: Without dead ends: 170 [2024-12-01 13:17:15,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=205, Invalid=607, Unknown=0, NotChecked=0, Total=812 [2024-12-01 13:17:15,210 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 464 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:15,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 443 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 13:17:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-12-01 13:17:15,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 142. [2024-12-01 13:17:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 114 states have (on average 1.3421052631578947) internal successors, (153), 115 states have internal predecessors, (153), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-01 13:17:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 199 transitions. [2024-12-01 13:17:15,228 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 199 transitions. Word has length 144 [2024-12-01 13:17:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:15,229 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 199 transitions. [2024-12-01 13:17:15,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 5 states have call successors, (57), 3 states have call predecessors, (57), 5 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) [2024-12-01 13:17:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 199 transitions. [2024-12-01 13:17:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:17:15,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:15,232 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:15,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:17:15,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:15,432 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:15,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash -249562277, now seen corresponding path program 1 times [2024-12-01 13:17:15,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211813891] [2024-12-01 13:17:15,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-01 13:17:16,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:16,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211813891] [2024-12-01 13:17:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211813891] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:16,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690219784] [2024-12-01 13:17:16,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:16,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:16,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:16,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:16,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 13:17:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:16,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-01 13:17:16,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 308 proven. 12 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-12-01 13:17:16,877 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-01 13:17:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690219784] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:17,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:17:17,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 19 [2024-12-01 13:17:17,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027219822] [2024-12-01 13:17:17,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:17,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:17:17,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:17,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:17:17,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:17:17,209 INFO L87 Difference]: Start difference. First operand 142 states and 199 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:17,544 INFO L93 Difference]: Finished difference Result 366 states and 497 transitions. [2024-12-01 13:17:17,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:17:17,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144 [2024-12-01 13:17:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:17,548 INFO L225 Difference]: With dead ends: 366 [2024-12-01 13:17:17,549 INFO L226 Difference]: Without dead ends: 227 [2024-12-01 13:17:17,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-12-01 13:17:17,550 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 102 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:17,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 602 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:17:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-12-01 13:17:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 153. [2024-12-01 13:17:17,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 121 states have (on average 1.322314049586777) internal successors, (160), 122 states have internal predecessors, (160), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-01 13:17:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 210 transitions. [2024-12-01 13:17:17,578 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 210 transitions. Word has length 144 [2024-12-01 13:17:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:17,579 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 210 transitions. [2024-12-01 13:17:17,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 210 transitions. [2024-12-01 13:17:17,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-01 13:17:17,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:17,581 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:17,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 13:17:17,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:17,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:17,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash -816841825, now seen corresponding path program 1 times [2024-12-01 13:17:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:17,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635310547] [2024-12-01 13:17:17,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:17,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-01 13:17:19,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635310547] [2024-12-01 13:17:19,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635310547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601972292] [2024-12-01 13:17:19,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:19,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:19,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:19,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:19,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 13:17:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:19,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-01 13:17:19,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 514 proven. 162 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-12-01 13:17:20,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-01 13:17:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601972292] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:21,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:17:21,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 23] total 32 [2024-12-01 13:17:21,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597651238] [2024-12-01 13:17:21,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:21,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 13:17:21,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:21,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 13:17:21,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2024-12-01 13:17:21,302 INFO L87 Difference]: Start difference. First operand 153 states and 210 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:21,580 INFO L93 Difference]: Finished difference Result 334 states and 453 transitions. [2024-12-01 13:17:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 13:17:21,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144 [2024-12-01 13:17:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:21,582 INFO L225 Difference]: With dead ends: 334 [2024-12-01 13:17:21,582 INFO L226 Difference]: Without dead ends: 184 [2024-12-01 13:17:21,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056 [2024-12-01 13:17:21,584 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 79 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:21,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 500 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:17:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-01 13:17:21,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 144. [2024-12-01 13:17:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 112 states have internal predecessors, (142), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-01 13:17:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 192 transitions. [2024-12-01 13:17:21,604 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 192 transitions. Word has length 144 [2024-12-01 13:17:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:21,605 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 192 transitions. [2024-12-01 13:17:21,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 192 transitions. [2024-12-01 13:17:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-01 13:17:21,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:21,607 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:21,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 13:17:21,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:21,807 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:21,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1858690696, now seen corresponding path program 1 times [2024-12-01 13:17:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538752264] [2024-12-01 13:17:21,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:21,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-01 13:17:22,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:22,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538752264] [2024-12-01 13:17:22,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538752264] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:22,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:22,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 13:17:22,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455134631] [2024-12-01 13:17:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:22,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:17:22,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:22,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:17:22,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:17:22,412 INFO L87 Difference]: Start difference. First operand 144 states and 192 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:22,743 INFO L93 Difference]: Finished difference Result 360 states and 486 transitions. [2024-12-01 13:17:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:17:22,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 146 [2024-12-01 13:17:22,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:22,746 INFO L225 Difference]: With dead ends: 360 [2024-12-01 13:17:22,746 INFO L226 Difference]: Without dead ends: 219 [2024-12-01 13:17:22,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-01 13:17:22,747 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 40 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:22,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 456 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:17:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-12-01 13:17:22,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 181. [2024-12-01 13:17:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 148 states have (on average 1.337837837837838) internal successors, (198), 149 states have internal predecessors, (198), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-01 13:17:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 248 transitions. [2024-12-01 13:17:22,767 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 248 transitions. Word has length 146 [2024-12-01 13:17:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:22,768 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 248 transitions. [2024-12-01 13:17:22,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-01 13:17:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2024-12-01 13:17:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-01 13:17:22,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:22,770 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:22,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:17:22,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:22,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2134511320, now seen corresponding path program 1 times [2024-12-01 13:17:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:22,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813041156] [2024-12-01 13:17:22,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-01 13:17:22,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183206627] [2024-12-01 13:17:22,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:22,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:22,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:22,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:22,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 13:17:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:17:23,268 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 13:17:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 13:17:23,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 13:17:23,377 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 13:17:23,378 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-01 13:17:23,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 13:17:23,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-01 13:17:23,582 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:23,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:17:23,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:17:23 BoogieIcfgContainer [2024-12-01 13:17:23,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:17:23,653 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:17:23,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:17:23,653 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:17:23,654 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:17:10" (3/4) ... [2024-12-01 13:17:23,656 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 13:17:23,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:17:23,657 INFO L158 Benchmark]: Toolchain (without parser) took 14206.65ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 92.5MB in the beginning and 97.6MB in the end (delta: -5.1MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. [2024-12-01 13:17:23,657 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:17:23,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.10ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 13:17:23,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.28ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:17:23,658 INFO L158 Benchmark]: Boogie Preprocessor took 36.32ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 73.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:17:23,658 INFO L158 Benchmark]: RCFGBuilder took 415.94ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 53.5MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 13:17:23,659 INFO L158 Benchmark]: TraceAbstraction took 13459.09ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 53.1MB in the beginning and 97.6MB in the end (delta: -44.6MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-12-01 13:17:23,659 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 243.3MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:17:23,660 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.10ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.28ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.32ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 73.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 415.94ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 53.5MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13459.09ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 53.1MB in the beginning and 97.6MB in the end (delta: -44.6MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 243.3MB. Free memory was 97.6MB in the beginning and 97.6MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 109, overapproximation of someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 125. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed char var_1_2 = 100; [L24] signed short int var_1_3 = 1; [L25] signed long int var_1_4 = -16; [L26] signed long int var_1_5 = -64; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 5; [L29] double var_1_8 = 16.25; [L30] double var_1_9 = 1.8; [L31] unsigned char var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] unsigned short int var_1_12 = 16; [L34] unsigned long int var_1_13 = 128; [L35] unsigned char var_1_15 = 1; [L36] unsigned short int var_1_16 = 256; [L37] unsigned short int var_1_17 = 8; [L38] signed char var_1_18 = -2; VAL [isInitial=0, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=100, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L129] isInitial = 1 [L130] FCALL initially() [L132] FCALL updateLastVariables() [L133] CALL updateVariables() [L89] var_1_2 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=1, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] var_1_3 = __VERIFIER_nondet_short() [L93] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=-16, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] var_1_4 = __VERIFIER_nondet_long() [L96] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L96] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L98] var_1_5 = __VERIFIER_nondet_long() [L99] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L99] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L100] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L101] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L101] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L102] var_1_6 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L103] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L104] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L104] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L105] var_1_7 = __VERIFIER_nondet_char() [L106] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L106] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L107] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L107] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_8=65/4, var_1_9=9/5] [L108] var_1_8 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_9=9/5] [L109] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6, var_1_9=9/5] [L110] var_1_9 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L111] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L112] var_1_11 = __VERIFIER_nondet_uchar() [L113] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L113] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L114] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L114] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L115] var_1_15 = __VERIFIER_nondet_uchar() [L116] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L116] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L117] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L117] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_17=8, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L118] var_1_17 = __VERIFIER_nondet_ushort() [L119] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L119] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L120] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L120] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L133] RET updateVariables() [L134] CALL step() [L42] EXPR var_1_2 >> var_1_3 VAL [isInitial=1, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L42] signed long int stepLocal_1 = var_1_2 >> var_1_3; [L43] EXPR var_1_3 << (var_1_6 - var_1_7) VAL [isInitial=1, stepLocal_1=0, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L43] signed long int stepLocal_0 = var_1_3 << (var_1_6 - var_1_7); [L44] COND FALSE !(stepLocal_1 == (var_1_4 / var_1_5)) VAL [isInitial=1, stepLocal_0=0, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L51] signed char stepLocal_2 = var_1_6; VAL [isInitial=1, stepLocal_0=0, stepLocal_2=12, var_1_10=32, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L52] COND TRUE stepLocal_2 <= (var_1_4 + var_1_7) [L53] var_1_10 = var_1_11 VAL [isInitial=1, stepLocal_0=0, var_1_10=-2, var_1_11=-2, var_1_12=16, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L57] COND TRUE ((var_1_6 >> 2) * var_1_10) > var_1_4 [L58] var_1_12 = var_1_6 VAL [isInitial=1, stepLocal_0=0, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L60] EXPR 1 << var_1_2 VAL [isInitial=1, stepLocal_0=0, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=128, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L60] COND TRUE (1 << var_1_2) != (-500 / -100) [L61] COND FALSE !((var_1_6 - var_1_3) >= (var_1_10 + 256)) [L64] var_1_13 = var_1_12 VAL [isInitial=1, stepLocal_0=0, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L69] signed long int stepLocal_4 = (((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64))); [L70] unsigned short int stepLocal_3 = var_1_17; VAL [isInitial=1, stepLocal_0=0, stepLocal_3=20, stepLocal_4=254, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=256, var_1_17=20, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L71] COND FALSE !((- var_1_9) <= var_1_8) [L84] var_1_16 = var_1_10 VAL [isInitial=1, stepLocal_0=0, stepLocal_3=20, stepLocal_4=254, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=-2, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L86] var_1_18 = var_1_3 VAL [isInitial=1, stepLocal_0=0, stepLocal_3=20, stepLocal_4=254, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L134] RET step() [L135] CALL, EXPR property() [L125] EXPR var_1_2 >> var_1_3 VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L125] EXPR ((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L125] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L125] EXPR 1 << var_1_2 VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L125] EXPR (((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L125-L126] return (((((((var_1_2 >> var_1_3) == (var_1_4 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_4 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (var_1_4 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * var_1_10) > var_1_4) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_2) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_10 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_2) ? ((var_1_17 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L135] RET, EXPR property() [L135] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] [L19] reach_error() VAL [isInitial=1, var_1_10=-2, var_1_11=-2, var_1_12=12, var_1_13=12, var_1_15=-255, var_1_16=254, var_1_17=20, var_1_18=0, var_1_1=11/2, var_1_2=0, var_1_3=0, var_1_4=6, var_1_5=5, var_1_6=12, var_1_7=6] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 7, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 687 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 685 mSDsluCounter, 2348 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1639 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1134 IncrementalHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 709 mSDtfsCounter, 1134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1071 GetRequests, 987 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 180 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 1731 NumberOfCodeBlocks, 1731 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1858 ConstructedInterpolants, 0 QuantifiedInterpolants, 8320 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1302 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 10553/10920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-01 13:17:23,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:17:25,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:17:25,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-01 13:17:25,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:17:25,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:17:25,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:17:25,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:17:25,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:17:25,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:17:25,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:17:25,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:17:25,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:17:25,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:17:25,706 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:17:25,706 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:17:25,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:17:25,707 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:17:25,708 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:25,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:17:25,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:25,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:17:25,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:17:25,709 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_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8e8864fbe413b3462ae8de456d5394de90101cbca5bf1017bcb2949274e710c [2024-12-01 13:17:25,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:17:25,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:17:25,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:17:25,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:17:25,968 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:17:25,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:28,669 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/edff903d0/1d286cf745e64b0b825d5fc59e99ad7e/FLAG7c2ff5e29 [2024-12-01 13:17:28,856 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:17:28,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:28,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/edff903d0/1d286cf745e64b0b825d5fc59e99ad7e/FLAG7c2ff5e29 [2024-12-01 13:17:28,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/data/edff903d0/1d286cf745e64b0b825d5fc59e99ad7e [2024-12-01 13:17:28,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:17:28,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:17:28,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:17:28,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:17:28,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:17:28,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:17:28" (1/1) ... [2024-12-01 13:17:28,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f674e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:28, skipping insertion in model container [2024-12-01 13:17:28,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:17:28" (1/1) ... [2024-12-01 13:17:28,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:17:29,027 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_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2024-12-01 13:17:29,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:17:29,095 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:17:29,106 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_2a1df2da-3c58-4f68-bb28-310c0713248e/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-9.i[916,929] [2024-12-01 13:17:29,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:17:29,147 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:17:29,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29 WrapperNode [2024-12-01 13:17:29,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:17:29,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:17:29,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:17:29,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:17:29,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,188 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-12-01 13:17:29,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:17:29,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:17:29,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:17:29,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:17:29,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,214 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 13:17:29,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,224 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:17:29,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:17:29,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:17:29,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:17:29,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (1/1) ... [2024-12-01 13:17:29,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:17:29,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:29,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:17:29,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:17:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:17:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-01 13:17:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 13:17:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 13:17:29,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:17:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:17:29,370 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:17:29,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:17:29,711 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-01 13:17:29,711 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:17:29,719 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:17:29,719 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:17:29,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:17:29 BoogieIcfgContainer [2024-12-01 13:17:29,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:17:29,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:17:29,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:17:29,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:17:29,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:17:28" (1/3) ... [2024-12-01 13:17:29,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b6730e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:17:29, skipping insertion in model container [2024-12-01 13:17:29,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:17:29" (2/3) ... [2024-12-01 13:17:29,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b6730e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:17:29, skipping insertion in model container [2024-12-01 13:17:29,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:17:29" (3/3) ... [2024-12-01 13:17:29,729 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-9.i [2024-12-01 13:17:29,744 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:17:29,745 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-9.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:17:29,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:17:29,800 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;@22484255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:17:29,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:17:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-01 13:17:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-01 13:17:29,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:29,816 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:29,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:29,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash 207199203, now seen corresponding path program 1 times [2024-12-01 13:17:29,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:17:29,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058465888] [2024-12-01 13:17:29,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:29,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:17:29,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:17:29,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-01 13:17:29,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-01 13:17:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:30,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-01 13:17:30,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-12-01 13:17:30,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:17:30,110 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 13:17:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058465888] [2024-12-01 13:17:30,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058465888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:30,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:30,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:17:30,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079418668] [2024-12-01 13:17:30,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:17:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 13:17:30,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:17:30,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:17:30,134 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-01 13:17:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:30,156 INFO L93 Difference]: Finished difference Result 121 states and 209 transitions. [2024-12-01 13:17:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:17:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133 [2024-12-01 13:17:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:30,163 INFO L225 Difference]: With dead ends: 121 [2024-12-01 13:17:30,163 INFO L226 Difference]: Without dead ends: 60 [2024-12-01 13:17:30,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:17:30,168 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:30,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-12-01 13:17:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-12-01 13:17:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 37 states have internal predecessors, (47), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-01 13:17:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-12-01 13:17:30,203 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 133 [2024-12-01 13:17:30,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:30,203 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-12-01 13:17:30,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-01 13:17:30,204 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-12-01 13:17:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-01 13:17:30,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:30,207 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:30,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-01 13:17:30,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:17:30,408 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:30,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:30,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1441382090, now seen corresponding path program 1 times [2024-12-01 13:17:30,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 13:17:30,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602149786] [2024-12-01 13:17:30,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:30,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-01 13:17:30,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-01 13:17:30,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-01 13:17:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1df2da-3c58-4f68-bb28-310c0713248e/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-01 13:17:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:30,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-01 13:17:30,623 INFO L279 TraceCheckSpWp]: Computing forward predicates...