./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire --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 a455b61fe113f47d14217d396c2a515531f7c318e642948056697e83622a1761 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:10,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:10,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:32:10,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:10,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:10,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:10,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:10,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:10,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:10,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:10,520 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:10,521 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:10,521 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:10,523 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:32:10,524 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:10,524 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:10,524 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:32:10,525 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:32:10,525 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:10,526 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:32:10,526 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:32:10,527 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:32:10,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:10,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:10,530 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:32:10,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:32:10,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:32:10,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:10,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:10,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:10,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:10,534 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:32:10,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:10,534 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:10,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:10,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:32:10,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:10,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:10,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:10,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:10,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:10,537 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:32:10,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:32:10,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:10,538 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:10,538 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:10,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:10,539 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_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a455b61fe113f47d14217d396c2a515531f7c318e642948056697e83622a1761 [2023-11-23 20:32:10,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:10,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:10,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:10,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:10,890 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:10,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:13,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:14,184 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:14,185 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:14,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/ef190b781/84fab5644fab48e192c03d0144fe6ad1/FLAGc261bc6e8 [2023-11-23 20:32:14,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/ef190b781/84fab5644fab48e192c03d0144fe6ad1 [2023-11-23 20:32:14,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:14,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:14,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:14,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:14,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:14,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4293d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14, skipping insertion in model container [2023-11-23 20:32:14,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,274 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:14,436 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_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i[915,928] [2023-11-23 20:32:14,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:14,544 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:14,557 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_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i[915,928] [2023-11-23 20:32:14,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:14,636 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:14,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14 WrapperNode [2023-11-23 20:32:14,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:14,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:14,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:14,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:14,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,717 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192 [2023-11-23 20:32:14,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:14,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:14,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:14,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:14,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:14,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:14,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:14,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:14,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:14,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:14,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:32:14,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:32:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:32:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:15,007 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:15,010 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:15,507 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:15,788 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:15,789 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:32:15,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:15 BoogieIcfgContainer [2023-11-23 20:32:15,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:15,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:15,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:15,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:15,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:14" (1/3) ... [2023-11-23 20:32:15,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d08fd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:15, skipping insertion in model container [2023-11-23 20:32:15,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (2/3) ... [2023-11-23 20:32:15,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d08fd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:15, skipping insertion in model container [2023-11-23 20:32:15,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:15" (3/3) ... [2023-11-23 20:32:15,799 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:15,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:15,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:32:15,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:15,883 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;@4d7c78a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:15,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:32:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-23 20:32:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 20:32:15,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:15,901 INFO L195 NwaCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:15,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:15,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1441520564, now seen corresponding path program 1 times [2023-11-23 20:32:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:15,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969450661] [2023-11-23 20:32:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:15,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:16,227 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:32:16,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413081228] [2023-11-23 20:32:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:16,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:32:16,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:16,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:32:16,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:32:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:16,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:32:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:32:16,645 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:32:16,647 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:32:16,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:32:16,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:32:16,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:32:16,876 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:32:16,882 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:32:17,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:32:17 BoogieIcfgContainer [2023-11-23 20:32:17,029 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:32:17,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:32:17,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:32:17,030 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:32:17,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:15" (3/4) ... [2023-11-23 20:32:17,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:32:17,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:32:17,036 INFO L158 Benchmark]: Toolchain (without parser) took 2813.92ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 83.3MB in the beginning and 106.6MB in the end (delta: -23.2MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-11-23 20:32:17,037 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:17,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 127.9MB. Free memory was 82.9MB in the beginning and 68.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:32:17,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.50ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 64.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:32:17,046 INFO L158 Benchmark]: Boogie Preprocessor took 53.22ms. Allocated memory is still 127.9MB. Free memory was 64.5MB in the beginning and 61.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:32:17,047 INFO L158 Benchmark]: RCFGBuilder took 1017.50ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 61.9MB in the beginning and 94.2MB in the end (delta: -32.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-23 20:32:17,047 INFO L158 Benchmark]: TraceAbstraction took 1236.55ms. Allocated memory is still 172.0MB. Free memory was 93.0MB in the beginning and 107.6MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:17,048 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:32:17,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 127.9MB. Free memory was 82.9MB in the beginning and 68.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.50ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 64.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.22ms. Allocated memory is still 127.9MB. Free memory was 64.5MB in the beginning and 61.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1017.50ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 61.9MB in the beginning and 94.2MB in the end (delta: -32.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1236.55ms. Allocated memory is still 172.0MB. Free memory was 93.0MB in the beginning and 107.6MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). 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 65, overapproximation of shiftLeft at line 54, overapproximation of bitwiseOr at line 55, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 15.8; [L23] float var_1_2 = 9.5; [L24] float var_1_4 = 127.6; [L25] double var_1_5 = 100000000000000.5; [L26] double var_1_6 = 100000000000000.7; [L27] double var_1_7 = 256.75; [L28] unsigned char var_1_8 = 0; [L29] unsigned char var_1_9 = 1; [L30] unsigned char var_1_10 = 0; [L31] unsigned char var_1_11 = 0; [L32] signed char var_1_12 = 0; [L33] signed char var_1_13 = 2; [L34] unsigned char var_1_14 = 1; [L35] unsigned char var_1_16 = 10; [L36] unsigned char var_1_18 = 4; [L37] unsigned char var_1_19 = 8; [L38] unsigned char var_1_20 = 8; [L39] unsigned short int var_1_21 = 128; [L40] unsigned char var_1_22 = 0; [L41] unsigned short int var_1_24 = 34649; [L42] unsigned char last_1_var_1_8 = 0; [L43] unsigned short int last_1_var_1_21 = 128; [L44] unsigned char last_1_var_1_22 = 0; [L147] isInitial = 1 [L148] FCALL initially() [L149] COND TRUE 1 [L150] CALL updateLastVariables() [L138] last_1_var_1_8 = var_1_8 [L139] last_1_var_1_21 = var_1_21 [L140] last_1_var_1_22 = var_1_22 [L150] RET updateLastVariables() [L151] CALL updateVariables() [L98] var_1_2 = __VERIFIER_nondet_float() [L99] 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, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_4=638/5, var_1_5=200000000000001/2, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L99] 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, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_4=638/5, var_1_5=200000000000001/2, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L100] var_1_4 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_5=200000000000001/2, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_5=200000000000001/2, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L102] var_1_5 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_6=1000000000000007/10, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L104] var_1_6 = __VERIFIER_nondet_double() [L105] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_7=1027/4, var_1_8=0, var_1_9=1] [L106] var_1_7 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L108] var_1_9 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L110] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L111] var_1_10 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L113] CALL assume_abort_if_not(var_1_10 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_10 <= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L114] var_1_11 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L116] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=2, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L117] var_1_13 = __VERIFIER_nondet_char() [L118] CALL assume_abort_if_not(var_1_13 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_13 >= -127) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L119] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=10, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L120] var_1_16 = __VERIFIER_nondet_uchar() [L121] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L122] CALL assume_abort_if_not(var_1_16 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_16 <= 255) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L123] CALL assume_abort_if_not(var_1_16 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_16 != 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=4, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L124] var_1_18 = __VERIFIER_nondet_uchar() [L125] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L126] CALL assume_abort_if_not(var_1_18 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_18 <= 64) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=8, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L127] var_1_19 = __VERIFIER_nondet_uchar() [L128] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L129] CALL assume_abort_if_not(var_1_19 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_19 <= 63) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=8, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L130] var_1_20 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L132] CALL assume_abort_if_not(var_1_20 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_20 <= 127) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=34649, var_1_8=0, var_1_9=1] [L133] var_1_24 = __VERIFIER_nondet_ushort() [L134] CALL assume_abort_if_not(var_1_24 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_24 >= 32767) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=32767, var_1_8=0, var_1_9=1] [L135] CALL assume_abort_if_not(var_1_24 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=32767, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_24 <= 65535) VAL [isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=1, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=0, var_1_24=32767, var_1_8=0, var_1_9=1] [L151] RET updateVariables() [L152] CALL step() [L48] signed long int stepLocal_0 = (last_1_var_1_22 / var_1_16) * last_1_var_1_21; [L49] COND FALSE !(last_1_var_1_21 < stepLocal_0) [L52] var_1_14 = var_1_18 [L54] EXPR var_1_18 << var_1_14 [L54] signed long int stepLocal_3 = var_1_18 << var_1_14; [L55] EXPR var_1_14 | var_1_18 [L55] signed long int stepLocal_2 = (var_1_14 | var_1_18) / (var_1_24 - 1); [L56] COND FALSE !(var_1_19 == stepLocal_3) [L63] var_1_22 = 64 [L65] COND TRUE 64.5f <= var_1_2 [L66] COND FALSE !(\read(last_1_var_1_8)) [L73] var_1_1 = var_1_5 [L76] COND TRUE var_1_1 > ((var_1_1 * var_1_5) + 5.3) [L77] COND FALSE !((var_1_7 + var_1_1) < var_1_6) [L80] var_1_8 = var_1_10 [L85] COND TRUE ((- var_1_1) / 24.75) < var_1_6 [L86] COND TRUE var_1_7 >= var_1_1 [L87] var_1_12 = var_1_13 [L92] unsigned char stepLocal_1 = var_1_10; [L93] COND FALSE !(var_1_8 && stepLocal_1) [L152] RET step() [L153] CALL, EXPR property() [L143] EXPR ((((((64.5f <= var_1_2) ? (last_1_var_1_8 ? ((var_1_2 == var_1_4) ? (var_1_1 == ((double) (var_1_5 + ((((((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))) < (50.25)) ? (((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))) : (50.25)))))) : (var_1_1 == ((double) var_1_7))) : (var_1_1 == ((double) var_1_5))) : 1) && ((var_1_1 > ((var_1_1 * var_1_5) + 5.3)) ? (((var_1_7 + var_1_1) < var_1_6) ? (var_1_8 == ((unsigned char) var_1_9)) : (var_1_8 == ((unsigned char) var_1_10))) : (var_1_8 == ((unsigned char) var_1_11)))) && ((((- var_1_1) / 24.75) < var_1_6) ? ((var_1_7 >= var_1_1) ? (var_1_12 == ((signed char) var_1_13)) : (var_1_12 == ((signed char) var_1_13))) : 1)) && ((last_1_var_1_21 < ((last_1_var_1_22 / var_1_16) * last_1_var_1_21)) ? (var_1_14 == ((unsigned char) ((var_1_18 + var_1_19) + var_1_20))) : (var_1_14 == ((unsigned char) var_1_18)))) && ((var_1_8 && var_1_10) ? (var_1_21 == ((unsigned short int) ((((((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))) > (2)) ? (((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))) : (2))))) : 1)) && ((var_1_19 == (var_1_18 << var_1_14)) ? ((last_1_var_1_22 >= ((var_1_14 | var_1_18) / (var_1_24 - 1))) ? (var_1_22 == ((unsigned char) 2)) : (var_1_22 == ((unsigned char) var_1_20))) : (var_1_22 == ((unsigned char) 64))) [L143-L144] return ((((((64.5f <= var_1_2) ? (last_1_var_1_8 ? ((var_1_2 == var_1_4) ? (var_1_1 == ((double) (var_1_5 + ((((((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))) < (50.25)) ? (((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))) : (50.25)))))) : (var_1_1 == ((double) var_1_7))) : (var_1_1 == ((double) var_1_5))) : 1) && ((var_1_1 > ((var_1_1 * var_1_5) + 5.3)) ? (((var_1_7 + var_1_1) < var_1_6) ? (var_1_8 == ((unsigned char) var_1_9)) : (var_1_8 == ((unsigned char) var_1_10))) : (var_1_8 == ((unsigned char) var_1_11)))) && ((((- var_1_1) / 24.75) < var_1_6) ? ((var_1_7 >= var_1_1) ? (var_1_12 == ((signed char) var_1_13)) : (var_1_12 == ((signed char) var_1_13))) : 1)) && ((last_1_var_1_21 < ((last_1_var_1_22 / var_1_16) * last_1_var_1_21)) ? (var_1_14 == ((unsigned char) ((var_1_18 + var_1_19) + var_1_20))) : (var_1_14 == ((unsigned char) var_1_18)))) && ((var_1_8 && var_1_10) ? (var_1_21 == ((unsigned short int) ((((((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))) > (2)) ? (((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))) : (2))))) : 1)) && ((var_1_19 == (var_1_18 << var_1_14)) ? ((last_1_var_1_22 >= ((var_1_14 | var_1_18) / (var_1_24 - 1))) ? (var_1_22 == ((unsigned char) 2)) : (var_1_22 == ((unsigned char) var_1_20))) : (var_1_22 == ((unsigned char) 64))) ; [L153] RET, EXPR property() [L153] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=64, var_1_24=32767, var_1_5=79/5, var_1_7=0, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=128, last_1_var_1_22=0, last_1_var_1_8=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_16=1, var_1_18=0, var_1_19=1, var_1_1=79/5, var_1_20=0, var_1_21=128, var_1_22=64, var_1_24=32767, var_1_5=79/5, var_1_7=0, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 24, 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=47occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 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 [2023-11-23 20:32:17,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire --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 a455b61fe113f47d14217d396c2a515531f7c318e642948056697e83622a1761 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:19,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:19,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:32:19,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:19,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:19,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:19,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:19,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:19,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:19,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:19,938 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:19,939 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:19,940 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:19,940 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:19,941 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:19,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:19,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:19,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:19,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:32:19,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:32:19,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:19,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:19,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:19,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:19,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:32:19,948 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:32:19,948 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:32:19,949 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:32:19,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:19,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:19,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:19,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:32:19,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:32:19,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:19,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:19,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:19,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:19,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:19,954 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:32:19,954 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:32:19,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:19,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:19,955 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:19,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:19,956 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_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a455b61fe113f47d14217d396c2a515531f7c318e642948056697e83622a1761 [2023-11-23 20:32:20,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:20,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:20,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:20,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:20,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:20,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:23,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:23,923 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:23,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:23,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/cc41f1411/2e4eec257e1144f79a2ca50b9a17f4e4/FLAG8ba002959 [2023-11-23 20:32:23,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/data/cc41f1411/2e4eec257e1144f79a2ca50b9a17f4e4 [2023-11-23 20:32:23,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:23,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:23,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:23,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:23,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:23,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:23" (1/1) ... [2023-11-23 20:32:23,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713008b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:23, skipping insertion in model container [2023-11-23 20:32:23,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:23" (1/1) ... [2023-11-23 20:32:23,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:24,214 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_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i[915,928] [2023-11-23 20:32:24,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:24,332 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:24,362 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_99643838-0ee4-4ee9-b133-2fda61531752/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount50_file-88.i[915,928] [2023-11-23 20:32:24,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:24,441 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:24,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24 WrapperNode [2023-11-23 20:32:24,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:24,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:24,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:24,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:24,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,516 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155 [2023-11-23 20:32:24,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:24,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:24,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:24,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:24,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:24,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:24,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:24,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:24,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (1/1) ... [2023-11-23 20:32:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:24,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:24,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:24,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:24,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:32:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:32:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:32:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:24,832 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:24,835 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:33,133 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:33,178 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:33,178 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:32:33,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:33 BoogieIcfgContainer [2023-11-23 20:32:33,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:33,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:33,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:33,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:33,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:23" (1/3) ... [2023-11-23 20:32:33,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a25d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:33, skipping insertion in model container [2023-11-23 20:32:33,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:24" (2/3) ... [2023-11-23 20:32:33,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a25d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:33, skipping insertion in model container [2023-11-23 20:32:33,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:33" (3/3) ... [2023-11-23 20:32:33,188 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-88.i [2023-11-23 20:32:33,207 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:33,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:32:33,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:33,264 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;@16576d99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:33,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:32:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-23 20:32:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 20:32:33,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:33,287 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:33,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:33,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:33,293 INFO L85 PathProgramCache]: Analyzing trace with hash 466245977, now seen corresponding path program 1 times [2023-11-23 20:32:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:32:33,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292151479] [2023-11-23 20:32:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:33,309 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 [2023-11-23 20:32:33,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:32:33,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:32:33,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:34,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:32:34,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:32:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-23 20:32:34,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:32:34,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:32:34,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292151479] [2023-11-23 20:32:34,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292151479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:34,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:34,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:32:34,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376933041] [2023-11-23 20:32:34,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:34,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:32:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:32:34,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:32:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:32:34,597 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 20:32:36,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:36,913 INFO L93 Difference]: Finished difference Result 125 states and 224 transitions. [2023-11-23 20:32:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:32:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 147 [2023-11-23 20:32:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:37,001 INFO L225 Difference]: With dead ends: 125 [2023-11-23 20:32:37,001 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 20:32:37,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:32:37,010 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:37,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 20:32:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 20:32:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-23 20:32:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-23 20:32:37,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2023-11-23 20:32:37,070 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 147 [2023-11-23 20:32:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:37,071 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2023-11-23 20:32:37,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 20:32:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2023-11-23 20:32:37,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 20:32:37,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:37,077 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:37,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 20:32:37,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:37,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:37,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:37,292 INFO L85 PathProgramCache]: Analyzing trace with hash 875110181, now seen corresponding path program 1 times [2023-11-23 20:32:37,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:32:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024454571] [2023-11-23 20:32:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:37,294 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 [2023-11-23 20:32:37,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:32:37,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:32:37,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:38,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:32:38,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:32:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 519 proven. 45 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 20:32:39,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:32:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-23 20:32:41,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:32:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024454571] [2023-11-23 20:32:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024454571] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:32:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [882395742] [2023-11-23 20:32:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:41,044 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:32:41,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:32:41,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:32:41,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:32:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:43,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:32:43,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:32:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 519 proven. 45 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 20:32:45,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:32:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-23 20:32:46,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [882395742] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:32:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038766635] [2023-11-23 20:32:46,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:46,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:32:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:46,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:32:46,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:32:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:46,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:32:46,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:32:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 519 proven. 45 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 20:32:47,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:32:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-23 20:32:48,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038766635] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:32:48,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:32:48,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2023-11-23 20:32:48,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558564458] [2023-11-23 20:32:48,728 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:32:48,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:32:48,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:32:48,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:32:48,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:32:48,733 INFO L87 Difference]: Start difference. First operand 62 states and 96 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-23 20:32:53,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:55,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:57,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:59,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:59,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:59,181 INFO L93 Difference]: Finished difference Result 131 states and 198 transitions. [2023-11-23 20:32:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 20:32:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 147 [2023-11-23 20:32:59,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:59,258 INFO L225 Difference]: With dead ends: 131 [2023-11-23 20:32:59,258 INFO L226 Difference]: Without dead ends: 70 [2023-11-23 20:32:59,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 867 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-23 20:32:59,261 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 70 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 24 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:59,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 204 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 176 Invalid, 4 Unknown, 0 Unchecked, 10.1s Time] [2023-11-23 20:32:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-23 20:32:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2023-11-23 20:32:59,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-23 20:32:59,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2023-11-23 20:32:59,282 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 98 transitions. Word has length 147 [2023-11-23 20:32:59,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:59,283 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 98 transitions. [2023-11-23 20:32:59,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-23 20:32:59,284 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 98 transitions. [2023-11-23 20:32:59,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 20:32:59,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:59,287 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:59,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:32:59,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:32:59,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 20:32:59,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:32:59,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:59,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 875169763, now seen corresponding path program 1 times [2023-11-23 20:32:59,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:32:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080217814] [2023-11-23 20:32:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:59,893 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 [2023-11-23 20:32:59,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:32:59,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:32:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 20:33:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:00,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 20:33:00,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 533 proven. 24 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2023-11-23 20:33:06,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:09,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:09,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080217814] [2023-11-23 20:33:09,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080217814] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:09,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [82080785] [2023-11-23 20:33:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:09,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:33:09,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:33:09,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99643838-0ee4-4ee9-b133-2fda61531752/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process