./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.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_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a3d5248cdb0c5ee4314312c0de325682ff374a2af9c4226a4cb5e12f30daff8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:16:28,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:16:28,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:16:28,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:16:28,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:16:28,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:16:28,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:16:28,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:16:28,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:16:28,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:16:28,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:16:28,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:16:28,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:16:28,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:16:28,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:16:28,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:28,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:28,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:28,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:16:28,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:16:28,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:16:28,133 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_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a3d5248cdb0c5ee4314312c0de325682ff374a2af9c4226a4cb5e12f30daff8 [2024-12-02 07:16:28,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:16:28,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:16:28,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:16:28,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:16:28,347 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:16:28,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.i [2024-12-02 07:16:31,018 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/data/212dcfcb0/183d2cdb2e1942e2a044ea0fdacfc7f5/FLAGb10fcdf4e [2024-12-02 07:16:31,212 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:16:31,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.i [2024-12-02 07:16:31,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/data/212dcfcb0/183d2cdb2e1942e2a044ea0fdacfc7f5/FLAGb10fcdf4e [2024-12-02 07:16:31,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/data/212dcfcb0/183d2cdb2e1942e2a044ea0fdacfc7f5 [2024-12-02 07:16:31,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:16:31,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:16:31,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:31,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:16:31,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:16:31,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f1847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31, skipping insertion in model container [2024-12-02 07:16:31,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:16:31,357 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_a00e2058-c5f3-4c93-b535-14f467eff9e9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.i[915,928] [2024-12-02 07:16:31,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:31,391 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:16:31,399 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_a00e2058-c5f3-4c93-b535-14f467eff9e9/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-58.i[915,928] [2024-12-02 07:16:31,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:31,423 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:16:31,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31 WrapperNode [2024-12-02 07:16:31,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:31,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:31,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:16:31,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:16:31,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,452 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-12-02 07:16:31,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:31,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:16:31,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:16:31,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:16:31,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,472 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:16:31,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:16:31,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:16:31,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:16:31,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:16:31,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (1/1) ... [2024-12-02 07:16:31,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:31,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:16:31,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:16:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:16:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:16:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:16:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:16:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:16:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:16:31,600 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:16:31,602 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:16:31,762 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 07:16:31,762 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:16:31,770 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:16:31,770 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:16:31,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:31 BoogieIcfgContainer [2024-12-02 07:16:31,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:16:31,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:16:31,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:16:31,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:16:31,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:16:31" (1/3) ... [2024-12-02 07:16:31,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58289f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:31, skipping insertion in model container [2024-12-02 07:16:31,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:31" (2/3) ... [2024-12-02 07:16:31,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58289f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:16:31, skipping insertion in model container [2024-12-02 07:16:31,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:31" (3/3) ... [2024-12-02 07:16:31,779 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-58.i [2024-12-02 07:16:31,790 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:16:31,792 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-58.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:16:31,836 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:16:31,846 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;@65b72fe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:16:31,846 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:16:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:16:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 07:16:31,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:31,856 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:31,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:31,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash 231146968, now seen corresponding path program 1 times [2024-12-02 07:16:31,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938442011] [2024-12-02 07:16:31,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:16:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938442011] [2024-12-02 07:16:32,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938442011] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:16:32,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311734196] [2024-12-02 07:16:32,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:32,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:16:32,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:32,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:16:32,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:16:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:32,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:16:32,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:16:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:16:32,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:16:32,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311734196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:32,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:16:32,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:16:32,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255154702] [2024-12-02 07:16:32,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:32,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:16:32,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:32,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:16:32,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:16:32,222 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:16:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:32,241 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2024-12-02 07:16:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:16:32,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2024-12-02 07:16:32,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:32,248 INFO L225 Difference]: With dead ends: 83 [2024-12-02 07:16:32,248 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 07:16:32,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:16:32,253 INFO L435 NwaCegarLoop]: 57 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, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:32,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:16:32,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 07:16:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-12-02 07:16:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:16:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-12-02 07:16:32,282 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 99 [2024-12-02 07:16:32,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:32,282 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-12-02 07:16:32,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:16:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-12-02 07:16:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 07:16:32,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:32,285 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:32,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:16:32,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:16:32,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:32,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:32,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1071897128, now seen corresponding path program 1 times [2024-12-02 07:16:32,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:32,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564044910] [2024-12-02 07:16:32,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:32,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:16:34,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:34,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564044910] [2024-12-02 07:16:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564044910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:34,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:34,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:16:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416659425] [2024-12-02 07:16:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:34,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:16:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:34,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:16:34,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:16:34,679 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:16:35,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:35,228 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-12-02 07:16:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:16:35,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-12-02 07:16:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:35,231 INFO L225 Difference]: With dead ends: 57 [2024-12-02 07:16:35,231 INFO L226 Difference]: Without dead ends: 55 [2024-12-02 07:16:35,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:16:35,232 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 18 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:35,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 266 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:16:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-12-02 07:16:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-12-02 07:16:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:16:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2024-12-02 07:16:35,250 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 99 [2024-12-02 07:16:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:35,250 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2024-12-02 07:16:35,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:16:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2024-12-02 07:16:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 07:16:35,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:35,253 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:35,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:16:35,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:35,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1014638826, now seen corresponding path program 1 times [2024-12-02 07:16:35,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:35,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384304879] [2024-12-02 07:16:35,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:35,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:16:36,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:36,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384304879] [2024-12-02 07:16:36,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384304879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:36,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:36,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:16:36,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732153231] [2024-12-02 07:16:36,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:36,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:16:36,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:36,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:16:36,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:16:36,302 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:16:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:36,755 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2024-12-02 07:16:36,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:16:36,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-12-02 07:16:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:36,756 INFO L225 Difference]: With dead ends: 56 [2024-12-02 07:16:36,756 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:16:36,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:16:36,758 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 11 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:36,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 249 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:16:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:16:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:16:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:16:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:16:36,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2024-12-02 07:16:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:36,759 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:16:36,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:16:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:16:36,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:16:36,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:16:36,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:16:36,765 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:16:36,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 07:16:37,011 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:16:37,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:16:37 BoogieIcfgContainer [2024-12-02 07:16:37,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:16:37,022 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:16:37,022 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:16:37,022 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:16:37,023 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:16:31" (3/4) ... [2024-12-02 07:16:37,025 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:16:37,030 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 07:16:37,033 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 07:16:37,033 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 07:16:37,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 07:16:37,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:16:37,106 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:16:37,106 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:16:37,106 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:16:37,107 INFO L158 Benchmark]: Toolchain (without parser) took 5871.97ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 92.2MB in the beginning and 201.1MB in the end (delta: -108.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-12-02 07:16:37,107 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:37,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.21ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:37,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.24ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:37,108 INFO L158 Benchmark]: Boogie Preprocessor took 29.90ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:37,108 INFO L158 Benchmark]: RCFGBuilder took 287.47ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 65.1MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:37,108 INFO L158 Benchmark]: TraceAbstraction took 5248.66ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 64.3MB in the beginning and 204.4MB in the end (delta: -140.1MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. [2024-12-02 07:16:37,109 INFO L158 Benchmark]: Witness Printer took 84.44ms. Allocated memory is still 234.9MB. Free memory was 204.4MB in the beginning and 201.1MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:37,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.21ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.24ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.90ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.47ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 65.1MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5248.66ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 64.3MB in the beginning and 204.4MB in the end (delta: -140.1MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. * Witness Printer took 84.44ms. Allocated memory is still 234.9MB. Free memory was 204.4MB in the beginning and 201.1MB in the end (delta: 3.3MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 572 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 179 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 392 ConstructedInterpolants, 0 QuantifiedInterpolants, 1476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 223 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1890/1920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:16:37,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a00e2058-c5f3-4c93-b535-14f467eff9e9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE