./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:04,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:04,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:08:04,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:04,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:04,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:04,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:04,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:04,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:04,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:04,718 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:04,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:04,720 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:04,722 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:04,723 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:04,723 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:04,724 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:04,724 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:04,725 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:04,726 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:04,726 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:04,727 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:04,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:04,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:04,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:04,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:04,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:04,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:04,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:04,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:04,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:04,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:04,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:04,733 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:04,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:04,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:04,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:04,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:04,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:04,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:04,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:04,737 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:04,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:04,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:04,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:04,738 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:04,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:04,739 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-23 21:08:05,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:05,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:05,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:05,141 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:05,142 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:05,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:08,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:08,472 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:08,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:08,483 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/23f775f40/52407615f59c45268adc16b607f736f9/FLAG57f936208 [2023-11-23 21:08:08,499 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/23f775f40/52407615f59c45268adc16b607f736f9 [2023-11-23 21:08:08,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:08,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:08,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:08,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:08,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:08,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68cd6a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08, skipping insertion in model container [2023-11-23 21:08:08,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,547 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:08,712 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-23 21:08:08,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:08,753 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:08,767 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-23 21:08:08,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:08,797 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:08,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08 WrapperNode [2023-11-23 21:08:08,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:08,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:08,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:08,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:08,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,842 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-23 21:08:08,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:08,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:08,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:08,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:08,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:08,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:08,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:08,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:08,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (1/1) ... [2023-11-23 21:08:08,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:08,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:08,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:08,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:09,014 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:09,016 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:09,188 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:09,277 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:09,278 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:09,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:09 BoogieIcfgContainer [2023-11-23 21:08:09,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:09,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:09,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:09,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:09,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:08" (1/3) ... [2023-11-23 21:08:09,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6925c6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:09, skipping insertion in model container [2023-11-23 21:08:09,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:08" (2/3) ... [2023-11-23 21:08:09,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6925c6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:09, skipping insertion in model container [2023-11-23 21:08:09,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:09" (3/3) ... [2023-11-23 21:08:09,291 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:09,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:09,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:09,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:09,379 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;@7b8cb395, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:09,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:08:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:08:09,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:09,394 INFO L195 NwaCegarLoop]: trace histogram [7, 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 21:08:09,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:09,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1276353838, now seen corresponding path program 1 times [2023-11-23 21:08:09,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:09,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268918931] [2023-11-23 21:08:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:09,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:08:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:08:09,805 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:08:09,808 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:08:09,810 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:08:09,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:08:09,832 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:08:09,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:08:09,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:08:09 BoogieIcfgContainer [2023-11-23 21:08:09,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:08:09,873 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:08:09,873 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:08:09,873 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:08:09,874 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:09" (3/4) ... [2023-11-23 21:08:09,876 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:08:09,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:08:09,878 INFO L158 Benchmark]: Toolchain (without parser) took 1375.87ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 119.0MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:09,879 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:09,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.00ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 98.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 151.0MB. Free memory was 98.2MB in the beginning and 96.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,881 INFO L158 Benchmark]: Boogie Preprocessor took 25.78ms. Allocated memory is still 151.0MB. Free memory was 96.5MB in the beginning and 95.6MB in the end (delta: 906.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:09,882 INFO L158 Benchmark]: RCFGBuilder took 409.56ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 80.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,883 INFO L158 Benchmark]: TraceAbstraction took 589.00ms. Allocated memory is still 151.0MB. Free memory was 80.2MB in the beginning and 119.8MB in the end (delta: -39.7MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,883 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 151.0MB. Free memory was 119.8MB in the beginning and 119.0MB in the end (delta: 874.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:09,887 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.00ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 98.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 151.0MB. Free memory was 98.2MB in the beginning and 96.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.78ms. Allocated memory is still 151.0MB. Free memory was 96.5MB in the beginning and 95.6MB in the end (delta: 906.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.56ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 80.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 589.00ms. Allocated memory is still 151.0MB. Free memory was 80.2MB in the beginning and 119.8MB in the end (delta: -39.7MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 151.0MB. Free memory was 119.8MB in the beginning and 119.0MB in the end (delta: 874.4kB). Peak memory consumption was 2.1MB. 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 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -16; [L23] signed short int var_1_2 = 16; [L24] signed short int var_1_3 = 25; [L25] signed long int var_1_4 = -32; [L26] unsigned char var_1_5 = 1; [L27] float var_1_6 = 0.6599999999999999; [L28] float var_1_7 = 256.6; [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] FCALL updateLastVariables() [L64] CALL updateVariables() [L41] var_1_2 = __VERIFIER_nondet_short() [L42] CALL assume_abort_if_not(var_1_2 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not(var_1_2 >= -32768) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L43] CALL assume_abort_if_not(var_1_2 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 <= 32767) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=25, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L44] var_1_3 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_3 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_3 >= -32768) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L46] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=-32, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L47] var_1_4 = __VERIFIER_nondet_long() [L48] CALL assume_abort_if_not(var_1_4 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_4 >= -2147483647) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L49] CALL assume_abort_if_not(var_1_4 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_4 <= 2147483646) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000, var_1_7=1283/5] [L50] var_1_7 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=-16, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=1, var_1_6=6599999999999999/10000000000000000] [L64] RET updateVariables() [L65] CALL step() [L32] COND FALSE !(var_1_2 <= var_1_3) [L35] var_1_1 = ((((var_1_4) > (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2))))) ? (var_1_4) : (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2)))))) [L37] var_1_5 = 0 [L38] var_1_6 = var_1_7 [L65] RET step() [L66] CALL, EXPR property() [L56-L57] return (((var_1_2 <= var_1_3) ? (var_1_1 == ((signed long int) ((((var_1_2) < ((var_1_3 + -50))) ? (var_1_2) : ((var_1_3 + -50)))))) : (var_1_1 == ((signed long int) ((((var_1_4) > (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2))))) ? (var_1_4) : (((((var_1_3) < (var_1_2)) ? (var_1_3) : (var_1_2))))))))) && (var_1_5 == ((unsigned char) 0))) && (var_1_6 == ((float) var_1_7)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=5, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=0, var_1_6=261, var_1_7=261] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=5, var_1_2=8, var_1_3=4, var_1_4=5, var_1_5=0, var_1_6=261, var_1_7=261] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 7, 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=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 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 21:08:09,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:12,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:12,836 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:08:12,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:12,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:12,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:12,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:12,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:12,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:12,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:12,903 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:12,903 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:12,904 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:12,905 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:12,906 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:12,906 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:12,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:12,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:12,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:12,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:12,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:12,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:12,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:12,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:12,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:12,912 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:08:12,912 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:08:12,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:12,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:12,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:12,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:12,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:08:12,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:12,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:12,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:12,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:12,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:12,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:12,917 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:08:12,918 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:12,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:12,919 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:12,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:12,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:12,920 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-23 21:08:13,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:13,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:13,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:13,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:13,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:13,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:16,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:16,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:16,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:16,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/edd609ed7/857d543874f743749b993f376d7ffa79/FLAGc9e3ef759 [2023-11-23 21:08:16,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/data/edd609ed7/857d543874f743749b993f376d7ffa79 [2023-11-23 21:08:16,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:16,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:16,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:16,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:16,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:16,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:16" (1/1) ... [2023-11-23 21:08:16,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674b558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:16, skipping insertion in model container [2023-11-23 21:08:16,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:16" (1/1) ... [2023-11-23 21:08:16,843 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:17,053 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-23 21:08:17,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:17,142 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:17,163 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_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-23 21:08:17,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:17,213 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:17,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17 WrapperNode [2023-11-23 21:08:17,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:17,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:17,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:17,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:17,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,290 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-11-23 21:08:17,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:17,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:17,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:17,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:17,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:17,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:17,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:17,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:17,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (1/1) ... [2023-11-23 21:08:17,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:17,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:17,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:17,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:08:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:17,493 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:17,496 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:17,763 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:17,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:17,864 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:08:17,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:17 BoogieIcfgContainer [2023-11-23 21:08:17,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:17,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:17,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:17,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:17,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:16" (1/3) ... [2023-11-23 21:08:17,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c6ed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:17, skipping insertion in model container [2023-11-23 21:08:17,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:17" (2/3) ... [2023-11-23 21:08:17,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c6ed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:17, skipping insertion in model container [2023-11-23 21:08:17,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:17" (3/3) ... [2023-11-23 21:08:17,877 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-23 21:08:17,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:17,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:17,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:17,971 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;@4ad6a8d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:17,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:08:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:08:17,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:17,993 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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 21:08:17,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:18,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:18,001 INFO L85 PathProgramCache]: Analyzing trace with hash -965972443, now seen corresponding path program 1 times [2023-11-23 21:08:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:18,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026437122] [2023-11-23 21:08:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:18,020 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 21:08:18,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:18,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:18,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:08:18,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 21:08:18,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:18,329 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:18,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026437122] [2023-11-23 21:08:18,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026437122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:18,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:18,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:18,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733800865] [2023-11-23 21:08:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:18,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:08:18,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:08:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:08:18,396 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:08:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:18,441 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2023-11-23 21:08:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:08:18,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 45 [2023-11-23 21:08:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:18,453 INFO L225 Difference]: With dead ends: 47 [2023-11-23 21:08:18,453 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 21:08:18,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 21:08:18,461 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:18,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:08:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 21:08:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-23 21:08:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:08:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2023-11-23 21:08:18,515 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 45 [2023-11-23 21:08:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:18,515 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-11-23 21:08:18,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:08:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-11-23 21:08:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:08:18,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:18,521 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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 21:08:18,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:18,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash 12048035, now seen corresponding path program 1 times [2023-11-23 21:08:18,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:18,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497659517] [2023-11-23 21:08:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:18,729 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 21:08:18,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:18,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:18,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:08:18,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 21:08:32,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:32,684 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:32,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497659517] [2023-11-23 21:08:32,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497659517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:32,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:32,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:08:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357045838] [2023-11-23 21:08:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:32,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:08:32,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:32,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:08:32,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:08:32,690 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 21:08:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:33,463 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-23 21:08:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:08:33,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2023-11-23 21:08:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:33,467 INFO L225 Difference]: With dead ends: 35 [2023-11-23 21:08:33,467 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 21:08:33,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:08:33,470 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:33,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 57 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:08:33,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 21:08:33,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-11-23 21:08:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:08:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-11-23 21:08:33,493 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 45 [2023-11-23 21:08:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:33,494 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-23 21:08:33,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 21:08:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-23 21:08:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:08:33,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:33,500 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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 21:08:33,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:33,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:33,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:33,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 11988453, now seen corresponding path program 1 times [2023-11-23 21:08:33,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:33,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744268288] [2023-11-23 21:08:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:33,708 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 21:08:33,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:33,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:33,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 (4)] Waiting until timeout for monitored process [2023-11-23 21:08:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:33,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:08:33,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-23 21:08:46,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:46,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:46,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744268288] [2023-11-23 21:08:46,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744268288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:46,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:46,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:08:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150971619] [2023-11-23 21:08:46,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:46,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:08:46,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:46,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:08:46,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:08:46,303 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 21:08:47,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:47,078 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-11-23 21:08:47,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:08:47,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2023-11-23 21:08:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:47,081 INFO L225 Difference]: With dead ends: 33 [2023-11-23 21:08:47,081 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:08:47,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:08:47,083 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:47,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 55 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:08:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:08:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:08:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:08:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:08:47,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-11-23 21:08:47,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:47,090 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:08:47,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-23 21:08:47,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:08:47,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:08:47,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:08:47,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 (4)] Ended with exit code 0 [2023-11-23 21:08:47,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 21:08:47,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:08:47,780 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-23 21:08:47,780 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-23 21:08:47,781 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,781 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-23 21:08:47,782 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,782 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 36) no Hoare annotation was computed. [2023-11-23 21:08:47,782 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 36) no Hoare annotation was computed. [2023-11-23 21:08:47,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-23 21:08:47,782 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-23 21:08:47,783 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,783 INFO L895 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,783 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:08:47,784 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 68) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,784 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 68) no Hoare annotation was computed. [2023-11-23 21:08:47,784 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-23 21:08:47,784 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,785 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:08:47,785 INFO L895 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq ~var_1_7~0 (fp.neg .cse0)) (fp.geq ~var_1_7~0 (fp.neg .cse1))) (and (fp.leq ~var_1_7~0 .cse1) (fp.geq ~var_1_7~0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-23 21:08:47,785 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-11-23 21:08:47,786 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 40 52) no Hoare annotation was computed. [2023-11-23 21:08:47,786 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-23 21:08:47,786 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-23 21:08:47,786 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-23 21:08:47,786 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-23 21:08:47,786 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-23 21:08:47,792 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:08:47,795 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:08:47,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 21:08:47,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 21:08:47,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 21:08:47,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 21:08:47,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-23 21:08:47,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:08:47 BoogieIcfgContainer [2023-11-23 21:08:47,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:08:47,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:08:47,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:08:47,814 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:08:47,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:17" (3/4) ... [2023-11-23 21:08:47,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:08:47,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 21:08:47,828 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 21:08:47,828 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 21:08:47,829 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:08:47,829 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:08:47,943 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:08:47,943 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:08:47,944 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:08:47,945 INFO L158 Benchmark]: Toolchain (without parser) took 31155.90ms. Allocated memory was 86.0MB in the beginning and 654.3MB in the end (delta: 568.3MB). Free memory was 62.5MB in the beginning and 543.0MB in the end (delta: -480.5MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,945 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 67.1MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:47,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.91ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 50.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.55ms. Allocated memory is still 86.0MB. Free memory was 50.6MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,947 INFO L158 Benchmark]: Boogie Preprocessor took 42.99ms. Allocated memory is still 86.0MB. Free memory was 48.7MB in the beginning and 47.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:47,947 INFO L158 Benchmark]: RCFGBuilder took 529.67ms. Allocated memory is still 86.0MB. Free memory was 47.1MB in the beginning and 53.6MB in the end (delta: -6.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,948 INFO L158 Benchmark]: TraceAbstraction took 29945.49ms. Allocated memory was 86.0MB in the beginning and 654.3MB in the end (delta: 568.3MB). Free memory was 52.9MB in the beginning and 547.2MB in the end (delta: -494.3MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,948 INFO L158 Benchmark]: Witness Printer took 130.61ms. Allocated memory is still 654.3MB. Free memory was 547.2MB in the beginning and 543.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:08:47,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 67.1MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.91ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 50.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.55ms. Allocated memory is still 86.0MB. Free memory was 50.6MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.99ms. Allocated memory is still 86.0MB. Free memory was 48.7MB in the beginning and 47.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 529.67ms. Allocated memory is still 86.0MB. Free memory was 47.1MB in the beginning and 53.6MB in the end (delta: -6.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 29945.49ms. Allocated memory was 86.0MB in the beginning and 654.3MB in the end (delta: 568.3MB). Free memory was 52.9MB in the beginning and 547.2MB in the end (delta: -494.3MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 130.61ms. Allocated memory is still 654.3MB. Free memory was 547.2MB in the beginning and 543.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.9s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 61 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 22 PreInvPairs, 31 NumberOfFragments, 207 HoareAnnotationTreeSize, 22 FomulaSimplifications, 546 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 340 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 24 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 252/252 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-23 21:08:48,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb387d81-168a-4d28-95d1-5ca21c2d7f3f/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 Writing output log to file Ultimate.log Result: TRUE