./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:52:38,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:52:39,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:52:39,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:52:39,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:52:39,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:52:39,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:52:39,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:52:39,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:52:39,053 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:52:39,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:52:39,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:52:39,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:52:39,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:52:39,054 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:52:39,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:52:39,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:52:39,056 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:52:39,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:52:39,058 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:39,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:52:39,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:39,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:52:39,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:52:39,060 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_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2024-11-28 03:52:39,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:52:39,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:52:39,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:52:39,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:52:39,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:52:39,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:42,529 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/1976abe6b/b4df2b9d28eb4ab8ab8c188779d0eef9/FLAG418b0b096 [2024-11-28 03:52:42,834 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:52:42,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:42,848 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/1976abe6b/b4df2b9d28eb4ab8ab8c188779d0eef9/FLAG418b0b096 [2024-11-28 03:52:43,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/1976abe6b/b4df2b9d28eb4ab8ab8c188779d0eef9 [2024-11-28 03:52:43,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:52:43,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:52:43,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:52:43,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:52:43,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:52:43,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2111043c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43, skipping insertion in model container [2024-11-28 03:52:43,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:52:43,352 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_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-28 03:52:43,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:52:43,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:52:43,439 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_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-28 03:52:43,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:52:43,490 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:52:43,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43 WrapperNode [2024-11-28 03:52:43,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:52:43,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:52:43,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:52:43,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:52:43,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,538 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-28 03:52:43,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:52:43,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:52:43,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:52:43,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:52:43,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,566 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:52:43,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,573 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:52:43,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:52:43,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:52:43,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:52:43,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (1/1) ... [2024-11-28 03:52:43,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:43,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:52:43,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:52:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:52:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:52:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:52:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:52:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:52:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:52:43,816 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:52:43,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:52:44,137 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 03:52:44,138 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:52:44,156 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:52:44,156 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:52:44,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:52:44 BoogieIcfgContainer [2024-11-28 03:52:44,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:52:44,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:52:44,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:52:44,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:52:44,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:52:43" (1/3) ... [2024-11-28 03:52:44,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5531cd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:52:44, skipping insertion in model container [2024-11-28 03:52:44,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:43" (2/3) ... [2024-11-28 03:52:44,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5531cd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:52:44, skipping insertion in model container [2024-11-28 03:52:44,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:52:44" (3/3) ... [2024-11-28 03:52:44,171 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:44,195 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:52:44,197 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:52:44,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:52:44,292 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;@e949668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:52:44,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:52:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:44,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:44,316 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:44,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:44,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1898402416, now seen corresponding path program 1 times [2024-11-28 03:52:44,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:52:44,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681365792] [2024-11-28 03:52:44,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-28 03:52:44,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:44,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681365792] [2024-11-28 03:52:44,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681365792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:44,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104403141] [2024-11-28 03:52:44,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:44,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:44,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:44,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:44,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:52:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:45,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:52:45,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-28 03:52:45,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:45,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104403141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:45,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:52:45,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:52:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98682305] [2024-11-28 03:52:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:45,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:52:45,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:52:45,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:52:45,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:52:45,137 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 03:52:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:45,182 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-28 03:52:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:52:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-28 03:52:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:45,195 INFO L225 Difference]: With dead ends: 99 [2024-11-28 03:52:45,196 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 03:52:45,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:52:45,207 INFO L435 NwaCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:45,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:52:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 03:52:45,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 03:52:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-11-28 03:52:45,280 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 98 [2024-11-28 03:52:45,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:45,282 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-11-28 03:52:45,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 03:52:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-11-28 03:52:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:45,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:45,289 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:45,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:52:45,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:52:45,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:45,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:45,495 INFO L85 PathProgramCache]: Analyzing trace with hash -974917370, now seen corresponding path program 1 times [2024-11-28 03:52:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:52:45,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043298548] [2024-11-28 03:52:45,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:45,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 03:52:45,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043298548] [2024-11-28 03:52:45,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043298548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:45,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:52:45,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:52:45,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451412754] [2024-11-28 03:52:45,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:45,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:52:45,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:52:45,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:52:45,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:52:45,888 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:52:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:45,930 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2024-11-28 03:52:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:52:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-28 03:52:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:45,933 INFO L225 Difference]: With dead ends: 102 [2024-11-28 03:52:45,933 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 03:52:45,934 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 [2024-11-28 03:52:45,935 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 15 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:45,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 127 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:52:45,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 03:52:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2024-11-28 03:52:45,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-28 03:52:45,946 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 98 [2024-11-28 03:52:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:45,947 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-28 03:52:45,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:52:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-28 03:52:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:45,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:45,955 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:45,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:52:45,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:45,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash 800089992, now seen corresponding path program 1 times [2024-11-28 03:52:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:52:45,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729307654] [2024-11-28 03:52:45,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:52:46,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719117582] [2024-11-28 03:52:46,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:46,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:46,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:52:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:52:46,329 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:52:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:52:46,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:52:46,480 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:52:46,481 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:52:46,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:52:46,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 03:52:46,688 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:52:46,789 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:52:46,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:52:46 BoogieIcfgContainer [2024-11-28 03:52:46,795 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:52:46,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:52:46,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:52:46,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:52:46,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:52:44" (3/4) ... [2024-11-28 03:52:46,801 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:52:46,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:52:46,802 INFO L158 Benchmark]: Toolchain (without parser) took 3692.56ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 70.8MB in the end (delta: 46.5MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-11-28 03:52:46,803 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:52:46,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.98ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:52:46,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.67ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 102.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:52:46,805 INFO L158 Benchmark]: Boogie Preprocessor took 58.50ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 100.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:52:46,805 INFO L158 Benchmark]: RCFGBuilder took 559.29ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 86.6MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:52:46,805 INFO L158 Benchmark]: TraceAbstraction took 2634.16ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 71.5MB in the end (delta: 14.6MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-28 03:52:46,806 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 70.8MB in the end (delta: 762.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:52:46,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.98ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.67ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 102.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.50ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 100.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.29ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 86.6MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2634.16ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 71.5MB in the end (delta: 14.6MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 70.8MB in the end (delta: 762.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -4; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 0; [L25] signed short int var_1_7 = 5; [L26] unsigned long int var_1_9 = 256; [L27] signed char var_1_10 = 10; [L28] signed char var_1_11 = 4; [L29] float var_1_12 = 32.4; [L30] float var_1_13 = 1.2; [L31] float var_1_14 = 64.8; [L32] float var_1_15 = 127.3; [L33] float var_1_16 = 4.02; [L34] signed char var_1_17 = -32; [L35] unsigned long int last_1_var_1_9 = 256; VAL [isInitial=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L92] isInitial = 1 [L93] FCALL initially() [L94] int k_loop; [L95] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L95] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L96] CALL updateLastVariables() [L85] last_1_var_1_9 = var_1_9 VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L59] var_1_2 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L60] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_3=0, var_1_7=5, var_1_9=256] [L61] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L61] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=0, var_1_7=5, var_1_9=256] [L62] var_1_3 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L63] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_7=5, var_1_9=256] [L64] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L64] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=5, var_1_9=256] [L65] var_1_7 = __VERIFIER_nondet_short() [L66] CALL assume_abort_if_not(var_1_7 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L66] RET assume_abort_if_not(var_1_7 >= -32768) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L67] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L67] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L68] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L68] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=10, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L69] var_1_10 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_10 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L70] RET assume_abort_if_not(var_1_10 >= -1) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L71] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L71] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=4, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L72] var_1_11 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L73] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L74] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L74] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_13=6/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L76] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_14=324/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L77] var_1_14 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L78] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_15=1273/10, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L80] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_16=201/50, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L82] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=256] [L97] RET updateVariables() [L98] CALL step() [L39] COND TRUE (var_1_10 - var_1_11) >= last_1_var_1_9 [L40] var_1_9 = (var_1_11 + 2u) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=162/5, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L42] COND FALSE !(\read(var_1_2)) [L45] var_1_12 = ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-32, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L47] var_1_17 = -4 VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L48] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L98] RET step() [L99] CALL, EXPR property() [L88-L89] return (((var_1_2 ? ((var_1_3 && (var_1_12 <= (- 63.9f))) ? ((var_1_12 >= var_1_12) ? (((var_1_9 / var_1_7) <= var_1_9) ? (var_1_1 == ((signed long int) var_1_9)) : 1) : 1) : 1) : 1) && (((var_1_10 - var_1_11) >= last_1_var_1_9) ? (var_1_9 == ((unsigned long int) (var_1_11 + 2u))) : 1)) && (var_1_2 ? (var_1_12 == ((float) ((((((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) < (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16))))) ? (((((var_1_13 - var_1_14) < 0 ) ? -(var_1_13 - var_1_14) : (var_1_13 - var_1_14)))) : (((((var_1_15) < (var_1_16)) ? (var_1_15) : (var_1_16)))))))) : (var_1_12 == ((float) ((((var_1_15) > (var_1_16)) ? (var_1_15) : (var_1_16))))))) && (var_1_17 == ((signed char) -4)) ; VAL [\result=0, isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_9=256, var_1_10=-1, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=0, var_1_17=-4, var_1_1=-4, var_1_2=0, var_1_3=1, var_1_7=3, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 145 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1232/1260 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:52:46,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:52:49,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:52:50,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:52:50,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:52:50,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:52:50,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:52:50,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:52:50,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:52:50,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:52:50,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:52:50,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:52:50,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:52:50,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:52:50,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:52:50,182 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:52:50,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:52:50,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:52:50,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:52:50,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:52:50,185 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:52:50,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:50,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:52:50,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:50,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:52:50,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:52:50,188 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:52:50,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:52:50,188 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:52:50,188 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:52:50,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:52:50,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:52:50,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:52:50,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:52:50,189 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_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c7e61f5459d5fc0a0cd65e2d0a5eb61e01ee4aec3eee7dfe70e8ab0a3470e9 [2024-11-28 03:52:50,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:52:50,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:52:50,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:52:50,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:52:50,623 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:52:50,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:53,912 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/11b20235e/ca0d0d83c8a74c9a989166dff05e791d/FLAG24bc54422 [2024-11-28 03:52:54,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:52:54,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:54,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/11b20235e/ca0d0d83c8a74c9a989166dff05e791d/FLAG24bc54422 [2024-11-28 03:52:54,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/data/11b20235e/ca0d0d83c8a74c9a989166dff05e791d [2024-11-28 03:52:54,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:52:54,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:52:54,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:52:54,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:52:54,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:52:54,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d4be3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54, skipping insertion in model container [2024-11-28 03:52:54,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:52:54,705 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_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-28 03:52:54,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:52:54,791 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:52:54,807 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_8e9df035-7668-418e-bf3e-eacf39ac8360/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-40.i[915,928] [2024-11-28 03:52:54,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:52:54,863 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:52:54,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54 WrapperNode [2024-11-28 03:52:54,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:52:54,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:52:54,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:52:54,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:52:54,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,923 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-28 03:52:54,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:52:54,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:52:54,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:52:54,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:52:54,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,956 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:52:54,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:54,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:52:54,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:52:54,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:52:54,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:52:54,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (1/1) ... [2024-11-28 03:52:55,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:52:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:55,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:52:55,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:52:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:52:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:52:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:52:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:52:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:52:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:52:55,189 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:52:55,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:52:56,135 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 03:52:56,135 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:52:56,151 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:52:56,151 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:52:56,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:52:56 BoogieIcfgContainer [2024-11-28 03:52:56,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:52:56,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:52:56,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:52:56,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:52:56,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:52:54" (1/3) ... [2024-11-28 03:52:56,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49143eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:52:56, skipping insertion in model container [2024-11-28 03:52:56,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:52:54" (2/3) ... [2024-11-28 03:52:56,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49143eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:52:56, skipping insertion in model container [2024-11-28 03:52:56,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:52:56" (3/3) ... [2024-11-28 03:52:56,164 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i [2024-11-28 03:52:56,183 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:52:56,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-40.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:52:56,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:52:56,287 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;@40972cb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:52:56,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:52:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:56,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:56,320 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:56,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:56,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1898402416, now seen corresponding path program 1 times [2024-11-28 03:52:56,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:52:56,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731040791] [2024-11-28 03:52:56,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:56,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:52:56,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:52:56,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:52:56,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:52:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:56,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:52:56,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 03:52:56,884 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:56,885 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:52:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731040791] [2024-11-28 03:52:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731040791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:52:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:52:56,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512536199] [2024-11-28 03:52:56,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:56,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:52:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:52:56,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:52:56,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:52:56,923 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 03:52:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:56,947 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2024-11-28 03:52:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:52:56,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-28 03:52:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:56,958 INFO L225 Difference]: With dead ends: 99 [2024-11-28 03:52:56,958 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 03:52:56,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:52:56,965 INFO L435 NwaCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:56,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:52:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 03:52:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 03:52:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-11-28 03:52:57,025 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 98 [2024-11-28 03:52:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:57,027 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-11-28 03:52:57,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 03:52:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-11-28 03:52:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:57,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:57,037 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:57,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:52:57,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:52:57,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:57,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash -974917370, now seen corresponding path program 1 times [2024-11-28 03:52:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:52:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886947531] [2024-11-28 03:52:57,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:52:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:52:57,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:52:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:52:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:57,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:52:57,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:52:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 03:52:57,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:52:57,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:52:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886947531] [2024-11-28 03:52:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886947531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:52:57,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:52:57,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:52:57,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327566316] [2024-11-28 03:52:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:52:57,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:52:57,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:52:57,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:52:57,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:52:57,743 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:52:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:52:57,937 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2024-11-28 03:52:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:52:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-28 03:52:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:52:57,941 INFO L225 Difference]: With dead ends: 102 [2024-11-28 03:52:57,941 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 03:52:57,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:52:57,943 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 15 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:52:57,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:52:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 03:52:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2024-11-28 03:52:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 03:52:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-28 03:52:57,957 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 98 [2024-11-28 03:52:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:52:57,959 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-28 03:52:57,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:52:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-28 03:52:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:52:57,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:52:57,962 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:52:57,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 03:52:58,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:52:58,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:52:58,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:52:58,163 INFO L85 PathProgramCache]: Analyzing trace with hash 800089992, now seen corresponding path program 1 times [2024-11-28 03:52:58,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:52:58,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305814387] [2024-11-28 03:52:58,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:58,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:52:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:52:58,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:52:58,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:52:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:58,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:52:58,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 03:55:46,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:55:46,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:55:46,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305814387] [2024-11-28 03:55:46,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305814387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:46,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:46,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:55:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196183181] [2024-11-28 03:55:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:46,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:55:46,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:55:46,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:55:46,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:55:46,904 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:55:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:49,825 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2024-11-28 03:55:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:55:49,827 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-28 03:55:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:49,829 INFO L225 Difference]: With dead ends: 144 [2024-11-28 03:55:49,829 INFO L226 Difference]: Without dead ends: 98 [2024-11-28 03:55:49,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:55:49,831 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 116 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:49,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 282 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:55:49,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-28 03:55:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2024-11-28 03:55:49,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 03:55:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-11-28 03:55:49,851 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 98 [2024-11-28 03:55:49,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:49,852 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-11-28 03:55:49,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 03:55:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-11-28 03:55:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:55:49,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:49,855 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:49,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 03:55:50,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:55:50,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:50,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash -9256634, now seen corresponding path program 1 times [2024-11-28 03:55:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:55:50,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175357458] [2024-11-28 03:55:50,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:50,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:55:50,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:55:50,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:55:50,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:55:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:50,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:55:50,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:44,529 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 04:06:44,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:06:44,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:06:44,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175357458] [2024-11-28 04:06:44,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175357458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:44,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:44,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:06:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140642422] [2024-11-28 04:06:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:44,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:06:44,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:06:44,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:06:44,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:06:44,532 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 04:06:47,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:47,046 INFO L93 Difference]: Finished difference Result 183 states and 247 transitions. [2024-11-28 04:06:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:06:47,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98 [2024-11-28 04:06:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:47,050 INFO L225 Difference]: With dead ends: 183 [2024-11-28 04:06:47,050 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 04:06:47,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:06:47,051 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:47,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 285 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:06:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 04:06:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2024-11-28 04:06:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 63 states have internal predecessors, (73), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:06:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2024-11-28 04:06:47,066 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 98 [2024-11-28 04:06:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:47,067 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2024-11-28 04:06:47,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-28 04:06:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2024-11-28 04:06:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:06:47,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:47,069 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:47,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 04:06:47,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:06:47,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:47,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:47,270 INFO L85 PathProgramCache]: Analyzing trace with hash -734930464, now seen corresponding path program 1 times [2024-11-28 04:06:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:06:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163555819] [2024-11-28 04:06:47,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:47,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:06:47,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:06:47,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:06:47,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e9df035-7668-418e-bf3e-eacf39ac8360/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 04:06:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:47,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:06:47,539 INFO L279 TraceCheckSpWp]: Computing forward predicates...