./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:04,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:04,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:04,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:04,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:04,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:04,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:04,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:04,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:04,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:04,449 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:04,450 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:04,451 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:04,453 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:04,453 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:04,454 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:04,454 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:04,455 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:04,455 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:04,456 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:04,456 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:04,457 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:04,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:04,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:04,459 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:04,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:04,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:04,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:04,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:04,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:04,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:04,463 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:04,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:04,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:04,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:04,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:04,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:04,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:04,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:04,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:04,466 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:04,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:04,466 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:04,467 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:04,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:04,468 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 [2023-11-12 00:47:04,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:04,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:04,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:04,792 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:04,792 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:04,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:07,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:08,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:08,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:08,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/c715a3c13/cf00d6aa7c9c46a3ad358584db743a8b/FLAG1967d7d0d [2023-11-12 00:47:08,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/c715a3c13/cf00d6aa7c9c46a3ad358584db743a8b [2023-11-12 00:47:08,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:08,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:08,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:08,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:08,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:08,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fd75d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08, skipping insertion in model container [2023-11-12 00:47:08,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:08,426 WARN L240 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_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-12 00:47:08,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:08,487 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:08,503 WARN L240 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_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-12 00:47:08,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:08,552 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:08,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08 WrapperNode [2023-11-12 00:47:08,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:08,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:08,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:08,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:08,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,601 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2023-11-12 00:47:08,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:08,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:08,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:08,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:08,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:08,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:08,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:08,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:08,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (1/1) ... [2023-11-12 00:47:08,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:08,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:08,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:08,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:08,783 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:08,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:08,966 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:09,081 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:09,082 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:09,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:09 BoogieIcfgContainer [2023-11-12 00:47:09,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:09,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:09,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:09,091 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:09,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:08" (1/3) ... [2023-11-12 00:47:09,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56aa1bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:09, skipping insertion in model container [2023-11-12 00:47:09,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:08" (2/3) ... [2023-11-12 00:47:09,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56aa1bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:09, skipping insertion in model container [2023-11-12 00:47:09,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:09" (3/3) ... [2023-11-12 00:47:09,094 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:09,118 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:09,118 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:09,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:09,180 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@15859a57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:09,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:47:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 00:47:09,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:09,193 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:09,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:09,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash -818395018, now seen corresponding path program 1 times [2023-11-12 00:47:09,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:09,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388050659] [2023-11-12 00:47:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:09,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:09,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:09,580 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:09,582 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:09,583 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:09,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:47:09,590 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:47:09,594 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:09,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:09 BoogieIcfgContainer [2023-11-12 00:47:09,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:09,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:09,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:09,637 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:09,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:09" (3/4) ... [2023-11-12 00:47:09,646 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:47:09,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:09,647 INFO L158 Benchmark]: Toolchain (without parser) took 1458.98ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 106.9MB in the beginning and 154.8MB in the end (delta: -47.9MB). Peak memory consumption was 888.8kB. Max. memory is 16.1GB. [2023-11-12 00:47:09,648 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 155.2MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:09,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.48ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 95.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:47:09,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.82ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 93.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:09,650 INFO L158 Benchmark]: Boogie Preprocessor took 24.31ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 92.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:09,650 INFO L158 Benchmark]: RCFGBuilder took 456.99ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:47:09,651 INFO L158 Benchmark]: TraceAbstraction took 548.95ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 76.4MB in the beginning and 154.8MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:09,651 INFO L158 Benchmark]: Witness Printer took 9.41ms. Allocated memory is still 201.3MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:09,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 155.2MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.48ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 95.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.82ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 93.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.31ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 92.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.99ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 548.95ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 76.4MB in the beginning and 154.8MB in the end (delta: -78.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.41ms. Allocated memory is still 201.3MB. Free memory is still 154.8MB. 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 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 0; [L23] float var_1_2 = 16.875; [L24] float var_1_3 = 49.5; [L25] signed short int var_1_4 = 25; [L26] signed short int var_1_5 = 256; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 64; [L61] isInitial = 1 [L62] FCALL initially() [L63] COND TRUE 1 [L64] FCALL updateLastVariables() [L65] CALL updateVariables() [L40] var_1_2 = __VERIFIER_nondet_float() [L41] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=99/2, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L41] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=99/2, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L42] var_1_3 = __VERIFIER_nondet_float() [L43] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L44] var_1_4 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=256, var_1_6=10, var_1_7=64] [L46] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=256, var_1_6=10, var_1_7=64] [L47] var_1_5 = __VERIFIER_nondet_short() [L48] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=64] [L49] CALL assume_abort_if_not(var_1_5 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_5 <= 32766) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=64] [L50] var_1_7 = __VERIFIER_nondet_char() [L51] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=126] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=126] [L52] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=126] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_1=0, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=10, var_1_7=126] [L65] RET updateVariables() [L66] CALL step() [L32] COND TRUE (- var_1_2) <= var_1_3 [L33] var_1_1 = (var_1_4 - var_1_5) [L37] var_1_6 = var_1_7 [L66] RET step() [L67] CALL, EXPR property() [L57-L58] return (((- var_1_2) <= var_1_3) ? (var_1_1 == ((signed short int) (var_1_4 - var_1_5))) : (var_1_1 == ((signed short int) ((100 + 4) - ((((16) < (var_1_5)) ? (16) : (var_1_5))))))) && (var_1_6 == ((signed char) var_1_7)) ; [L67] RET, EXPR property() [L67] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=4, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=126, var_1_7=126] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=4, var_1_3=32771, var_1_4=32766, var_1_5=32762, var_1_6=126, var_1_7=126] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:47:09,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:12,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:12,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:12,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:12,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:12,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:12,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:12,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:12,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:12,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:12,451 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:12,452 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:12,452 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:12,454 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:12,454 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:12,455 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:12,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:12,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:12,457 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:12,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:12,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:12,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:12,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:12,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:12,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:12,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:12,461 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:12,461 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:12,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:12,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:12,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:12,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:12,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:12,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:12,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:12,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:12,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:12,466 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:12,466 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:12,467 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:12,468 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:12,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:12,468 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 [2023-11-12 00:47:12,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:12,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:12,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:12,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:12,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:12,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:16,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:16,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:16,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:16,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/f133c0cb1/7817b6d2ae544d19a8dc7f374c2ad1c6/FLAG99a51f066 [2023-11-12 00:47:16,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/data/f133c0cb1/7817b6d2ae544d19a8dc7f374c2ad1c6 [2023-11-12 00:47:16,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:16,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:16,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:16,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:16,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:16,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:16,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2ded99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16, skipping insertion in model container [2023-11-12 00:47:16,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:16,600 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:16,811 WARN L240 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_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-12 00:47:16,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:16,893 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:16,911 WARN L240 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_842231d2-0096-4a61-9d9b-0dc7613d61db/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-12 00:47:16,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:16,967 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:16,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16 WrapperNode [2023-11-12 00:47:16,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:16,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:16,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:16,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:16,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,043 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-12 00:47:17,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:17,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:17,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:17,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:17,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:17,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:17,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:17,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:17,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (1/1) ... [2023-11-12 00:47:17,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:17,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:17,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:17,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:17,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:17,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:47:17,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:17,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:17,275 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:17,277 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:17,540 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:17,578 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:17,579 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:17,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:17 BoogieIcfgContainer [2023-11-12 00:47:17,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:17,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:17,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:17,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:17,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:16" (1/3) ... [2023-11-12 00:47:17,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e5c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:17, skipping insertion in model container [2023-11-12 00:47:17,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:16" (2/3) ... [2023-11-12 00:47:17,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148e5c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:17, skipping insertion in model container [2023-11-12 00:47:17,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:17" (3/3) ... [2023-11-12 00:47:17,601 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-81.i [2023-11-12 00:47:17,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:17,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:17,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:17,679 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@36407f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:17,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:47:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:47:17,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:17,696 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:17,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:17,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1876615441, now seen corresponding path program 1 times [2023-11-12 00:47:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:17,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797246676] [2023-11-12 00:47:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:17,718 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 [2023-11-12 00:47:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:17,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:17,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:17,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:47:17,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 00:47:19,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:19,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:19,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797246676] [2023-11-12 00:47:19,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797246676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:19,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:19,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:47:19,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555613267] [2023-11-12 00:47:19,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:19,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:19,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:19,228 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:47:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:19,645 INFO L93 Difference]: Finished difference Result 86 states and 137 transitions. [2023-11-12 00:47:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:47:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-11-12 00:47:19,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:19,657 INFO L225 Difference]: With dead ends: 86 [2023-11-12 00:47:19,658 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 00:47:19,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:47:19,665 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 25 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:19,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 201 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:47:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 00:47:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 34. [2023-11-12 00:47:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:47:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-11-12 00:47:19,722 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 56 [2023-11-12 00:47:19,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:19,723 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-11-12 00:47:19,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:47:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-12 00:47:19,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:47:19,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:19,732 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:47:19,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:47:19,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:19,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:19,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:19,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1819357139, now seen corresponding path program 1 times [2023-11-12 00:47:19,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:19,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660673654] [2023-11-12 00:47:19,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:19,952 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 [2023-11-12 00:47:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:19,954 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:19,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:20,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:47:20,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 00:47:21,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:21,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660673654] [2023-11-12 00:47:21,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660673654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:21,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:21,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:47:21,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808534284] [2023-11-12 00:47:21,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:21,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:47:21,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:47:21,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:47:21,111 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:47:21,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:21,453 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2023-11-12 00:47:21,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:47:21,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-11-12 00:47:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:21,455 INFO L225 Difference]: With dead ends: 55 [2023-11-12 00:47:21,455 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:47:21,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:47:21,457 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 24 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:21,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:47:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:47:21,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:47:21,459 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) [2023-11-12 00:47:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:47:21,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2023-11-12 00:47:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:21,459 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:47:21,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:47:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:47:21,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:47:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:21,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 00:47:21,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:21,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:47:21,680 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 38) no Hoare annotation was computed. [2023-11-12 00:47:21,681 INFO L899 garLoopResultBuilder]: For program point L52(lines 39 53) no Hoare annotation was computed. [2023-11-12 00:47:21,681 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-12 00:47:21,681 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-12 00:47:21,681 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-11-12 00:47:21,682 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-12 00:47:21,682 INFO L902 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: true [2023-11-12 00:47:21,682 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 60 71) no Hoare annotation was computed. [2023-11-12 00:47:21,682 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 36) no Hoare annotation was computed. [2023-11-12 00:47:21,682 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 00:47:21,683 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 36) no Hoare annotation was computed. [2023-11-12 00:47:21,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 00:47:21,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-12 00:47:21,683 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-12 00:47:21,683 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 56 59) no Hoare annotation was computed. [2023-11-12 00:47:21,684 INFO L902 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: true [2023-11-12 00:47:21,684 INFO L902 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: true [2023-11-12 00:47:21,684 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-12 00:47:21,684 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-12 00:47:21,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:47:21,685 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2023-11-12 00:47:21,685 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2023-11-12 00:47:21,685 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-12 00:47:21,685 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:47:21,686 INFO L902 garLoopResultBuilder]: At program point L63-2(lines 63 69) the Hoare annotation is: true [2023-11-12 00:47:21,686 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 69) no Hoare annotation was computed. [2023-11-12 00:47:21,686 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-11-12 00:47:21,686 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-11-12 00:47:21,686 INFO L902 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: true [2023-11-12 00:47:21,687 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-12 00:47:21,687 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-12 00:47:21,687 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-12 00:47:21,687 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-12 00:47:21,687 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-12 00:47:21,691 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:47:21,693 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:21,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:21 BoogieIcfgContainer [2023-11-12 00:47:21,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:21,701 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:21,701 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:21,702 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:21,702 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:17" (3/4) ... [2023-11-12 00:47:21,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:47:21,708 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:47:21,713 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-12 00:47:21,714 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 00:47:21,714 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:47:21,714 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:47:21,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:47:21,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:47:21,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:21,817 INFO L158 Benchmark]: Toolchain (without parser) took 5263.04ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 68.6MB in the beginning and 70.4MB in the end (delta: -1.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,817 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:21,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.94ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 56.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.03ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 54.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,819 INFO L158 Benchmark]: Boogie Preprocessor took 64.39ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 53.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,819 INFO L158 Benchmark]: RCFGBuilder took 480.96ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 68.7MB in the end (delta: -15.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,820 INFO L158 Benchmark]: TraceAbstraction took 4107.58ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 68.2MB in the beginning and 74.6MB in the end (delta: -6.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,820 INFO L158 Benchmark]: Witness Printer took 115.28ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 70.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:21,822 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 67.1MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.94ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 56.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.03ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 54.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.39ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 53.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 480.96ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 68.7MB in the end (delta: -15.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4107.58ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 68.2MB in the beginning and 74.6MB in the end (delta: -6.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 115.28ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 70.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 413 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 286 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 127 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 2 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 33 PreInvPairs, 51 NumberOfFragments, 10 HoareAnnotationTreeSize, 33 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 20 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 224/224 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-12 00:47:21,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842231d2-0096-4a61-9d9b-0dc7613d61db/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE