./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-25 00:00:58,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:00:58,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-25 00:00:58,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:00:58,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:00:58,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:00:58,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:00:58,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:00:58,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:00:58,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:00:58,870 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:00:58,871 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:00:58,872 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:00:58,874 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:00:58,874 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:00:58,875 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:00:58,892 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:00:58,892 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:00:58,892 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:00:58,893 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:00:58,893 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:00:58,895 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:00:58,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:00:58,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:00:58,896 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:00:58,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:00:58,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:00:58,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:00:58,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:00:58,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:00:58,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:00:58,899 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:00:58,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:00:58,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:00:58,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:00:58,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:00:58,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:00:58,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:00:58,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:00:58,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:00:58,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:00:58,901 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:00:58,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:00:58,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:00:58,902 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:00:58,902 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:00:58,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:00:58,903 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_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-25 00:00:59,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:00:59,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:00:59,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:00:59,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:00:59,282 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:00:59,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:02,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:02,750 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:02,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:02,761 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/425884cd3/04fe53deef7a4c9da40acb1d8117d676/FLAG6ad7ad944 [2023-11-25 00:01:02,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/425884cd3/04fe53deef7a4c9da40acb1d8117d676 [2023-11-25 00:01:02,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:02,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:02,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:02,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:02,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:02,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:02" (1/1) ... [2023-11-25 00:01:02,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185e754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:02, skipping insertion in model container [2023-11-25 00:01:02,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:02" (1/1) ... [2023-11-25 00:01:02,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:02,945 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_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-25 00:01:02,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:02,985 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:03,000 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_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-25 00:01:03,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:03,058 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:03,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03 WrapperNode [2023-11-25 00:01:03,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:03,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:03,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:03,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:03,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,099 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-25 00:01:03,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:03,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:03,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:03,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:03,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:03,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:03,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:03,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:03,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (1/1) ... [2023-11-25 00:01:03,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:03,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:03,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:03,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:01:03,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:01:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:01:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:03,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:03,305 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:03,307 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:03,491 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:03,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:03,614 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:01:03,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:03 BoogieIcfgContainer [2023-11-25 00:01:03,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:03,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:03,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:03,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:03,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:02" (1/3) ... [2023-11-25 00:01:03,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58be8a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:03, skipping insertion in model container [2023-11-25 00:01:03,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:03" (2/3) ... [2023-11-25 00:01:03,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58be8a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:03, skipping insertion in model container [2023-11-25 00:01:03,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:03" (3/3) ... [2023-11-25 00:01:03,632 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:03,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:03,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:01:03,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:03,707 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;@583a0403, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:03,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:01:03,713 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) [2023-11-25 00:01:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-25 00:01:03,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:03,727 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] [2023-11-25 00:01:03,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:03,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:03,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1276353838, now seen corresponding path program 1 times [2023-11-25 00:01:03,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:03,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121176336] [2023-11-25 00:01:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:03,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:04,065 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:01:04,067 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:04,068 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:01:04,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:04,075 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:01:04,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:04,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:04 BoogieIcfgContainer [2023-11-25 00:01:04,124 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:04,125 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:04,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:04,126 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:04,126 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:03" (3/4) ... [2023-11-25 00:01:04,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:04,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:04,131 INFO L158 Benchmark]: Toolchain (without parser) took 1354.96ms. Allocated memory is still 136.3MB. Free memory was 96.2MB in the beginning and 100.9MB in the end (delta: -4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:04,132 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:04,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.96ms. Allocated memory is still 136.3MB. Free memory was 96.2MB in the beginning and 84.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:01:04,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.35ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:04,134 INFO L158 Benchmark]: Boogie Preprocessor took 31.73ms. Allocated memory is still 136.3MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:04,149 INFO L158 Benchmark]: RCFGBuilder took 483.83ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 67.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-25 00:01:04,150 INFO L158 Benchmark]: TraceAbstraction took 504.06ms. Allocated memory is still 136.3MB. Free memory was 66.4MB in the beginning and 100.9MB in the end (delta: -34.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:04,150 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 136.3MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:04,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.96ms. Allocated memory is still 136.3MB. Free memory was 96.2MB in the beginning and 84.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.35ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.73ms. Allocated memory is still 136.3MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.83ms. Allocated memory is still 136.3MB. Free memory was 82.0MB in the beginning and 67.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 504.06ms. Allocated memory is still 136.3MB. Free memory was 66.4MB in the beginning and 100.9MB in the end (delta: -34.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 136.3MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 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: 0.4s, 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 [2023-11-25 00:01:04,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-25 00:01:06,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:07,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-25 00:01:07,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:07,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:07,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:07,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:07,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:07,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:07,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:07,055 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:07,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:07,056 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:07,061 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:07,061 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:07,062 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:07,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:07,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:07,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:07,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:07,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:07,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:07,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:07,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:07,068 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:07,068 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:01:07,069 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:01:07,069 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:07,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:07,070 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:07,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:07,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:01:07,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:07,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:07,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:07,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:07,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:07,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:07,074 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:01:07,075 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:01:07,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:07,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:07,076 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:07,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:07,077 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_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087f53d60a69a89d74f854e09dec49f6677e36a3379c1213b60b4862ed153ba1 [2023-11-25 00:01:07,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:07,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:07,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:07,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:07,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:07,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:10,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:10,989 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:10,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:10,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/4f3e2cb09/95aed0ad5a1e403c8057e287f268ae9a/FLAG31f8f0059 [2023-11-25 00:01:11,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/data/4f3e2cb09/95aed0ad5a1e403c8057e287f268ae9a [2023-11-25 00:01:11,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:11,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:11,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:11,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:11,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:11,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d8a5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11, skipping insertion in model container [2023-11-25 00:01:11,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:11,231 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_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-25 00:01:11,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:11,283 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:11,303 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_ade013d0-7ed4-44be-8786-19a2ce167a78/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-4.i[914,927] [2023-11-25 00:01:11,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:11,368 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:11,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11 WrapperNode [2023-11-25 00:01:11,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:11,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:11,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:11,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:11,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,437 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-11-25 00:01:11,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:11,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:11,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:11,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:11,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:11,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:11,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:11,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:11,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (1/1) ... [2023-11-25 00:01:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:11,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:11,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:11,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:01:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:01:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:01:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:11,710 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:11,714 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:11,963 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:12,056 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:12,057 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:01:12,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:12 BoogieIcfgContainer [2023-11-25 00:01:12,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:12,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:12,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:12,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:12,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:11" (1/3) ... [2023-11-25 00:01:12,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe0f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:12, skipping insertion in model container [2023-11-25 00:01:12,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:11" (2/3) ... [2023-11-25 00:01:12,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe0f1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:12, skipping insertion in model container [2023-11-25 00:01:12,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:12" (3/3) ... [2023-11-25 00:01:12,069 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-4.i [2023-11-25 00:01:12,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:12,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:01:12,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:12,161 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;@72cde483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:12,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:01:12,164 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) [2023-11-25 00:01:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-25 00:01:12,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:12,175 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] [2023-11-25 00:01:12,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:12,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash -965972443, now seen corresponding path program 1 times [2023-11-25 00:01:12,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:12,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000539205] [2023-11-25 00:01:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:12,196 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 [2023-11-25 00:01:12,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:12,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:01:12,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:12,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:01:12,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-25 00:01:12,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:12,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000539205] [2023-11-25 00:01:12,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000539205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:12,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:12,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656337337] [2023-11-25 00:01:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:12,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:01:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:01:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:01:12,481 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) [2023-11-25 00:01:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:12,549 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2023-11-25 00:01:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:01:12,552 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 [2023-11-25 00:01:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:12,560 INFO L225 Difference]: With dead ends: 47 [2023-11-25 00:01:12,561 INFO L226 Difference]: Without dead ends: 23 [2023-11-25 00:01:12,564 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 [2023-11-25 00:01:12,571 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 [2023-11-25 00:01:12,573 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] [2023-11-25 00:01:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-25 00:01:12,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-25 00:01:12,623 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) [2023-11-25 00:01:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2023-11-25 00:01:12,628 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 45 [2023-11-25 00:01:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:12,629 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-11-25 00:01:12,630 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) [2023-11-25 00:01:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-11-25 00:01:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-25 00:01:12,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:12,635 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] [2023-11-25 00:01:12,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:12,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:12,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:12,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash 12048035, now seen corresponding path program 1 times [2023-11-25 00:01:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:12,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998962356] [2023-11-25 00:01:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:12,847 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 [2023-11-25 00:01:12,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:12,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:01:12,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:13,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-25 00:01:13,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-25 00:01:28,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:28,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:28,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998962356] [2023-11-25 00:01:28,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998962356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-25 00:01:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35804335] [2023-11-25 00:01:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:28,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:01:28,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:28,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:01:28,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:01:28,138 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) [2023-11-25 00:01:28,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:28,878 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-25 00:01:28,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-25 00:01:28,880 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 [2023-11-25 00:01:28,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:28,882 INFO L225 Difference]: With dead ends: 35 [2023-11-25 00:01:28,882 INFO L226 Difference]: Without dead ends: 33 [2023-11-25 00:01:28,882 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 [2023-11-25 00:01:28,884 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 [2023-11-25 00:01:28,885 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] [2023-11-25 00:01:28,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-25 00:01:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-11-25 00:01:28,901 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) [2023-11-25 00:01:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-11-25 00:01:28,904 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 45 [2023-11-25 00:01:28,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:28,905 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-25 00:01:28,905 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) [2023-11-25 00:01:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-25 00:01:28,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-25 00:01:28,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:28,910 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] [2023-11-25 00:01:28,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-25 00:01:29,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:29,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:01:29,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 11988453, now seen corresponding path program 1 times [2023-11-25 00:01:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:29,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007230012] [2023-11-25 00:01:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:29,117 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 [2023-11-25 00:01:29,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:29,118 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:01:29,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:29,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-25 00:01:29,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:01:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-25 00:01:39,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:01:39,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:01:39,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007230012] [2023-11-25 00:01:39,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007230012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:39,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:39,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-25 00:01:39,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907037558] [2023-11-25 00:01:39,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:01:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:01:39,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:01:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:01:39,891 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) [2023-11-25 00:01:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:40,537 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-11-25 00:01:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-25 00:01:40,543 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 [2023-11-25 00:01:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:40,544 INFO L225 Difference]: With dead ends: 33 [2023-11-25 00:01:40,544 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:01:40,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-25 00:01:40,546 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2023-11-25 00:01:40,547 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] [2023-11-25 00:01:40,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:01:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:01:40,548 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) [2023-11-25 00:01:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:01:40,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-11-25 00:01:40,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:40,549 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:01:40,549 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) [2023-11-25 00:01:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:01:40,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:01:40,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-25 00:01:40,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:40,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:01:40,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:01:41,132 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-25 00:01:41,132 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-25 00:01:41,132 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)) [2023-11-25 00:01:41,132 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-25 00:01:41,133 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)) [2023-11-25 00:01:41,133 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 36) no Hoare annotation was computed. [2023-11-25 00:01:41,133 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 36) no Hoare annotation was computed. [2023-11-25 00:01:41,133 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-25 00:01:41,133 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-25 00:01:41,134 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)) [2023-11-25 00:01:41,134 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)) [2023-11-25 00:01:41,134 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:01:41,134 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)) [2023-11-25 00:01:41,134 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 68) no Hoare annotation was computed. [2023-11-25 00:01:41,135 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-25 00:01:41,135 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)) [2023-11-25 00:01:41,135 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:01:41,135 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)) [2023-11-25 00:01:41,135 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-11-25 00:01:41,136 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 40 52) no Hoare annotation was computed. [2023-11-25 00:01:41,136 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-25 00:01:41,136 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-25 00:01:41,136 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-25 00:01:41,136 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-25 00:01:41,136 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-25 00:01:41,140 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-25 00:01:41,142 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:41,157 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-25 00:01:41,158 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-25 00:01:41,159 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-25 00:01:41,159 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-25 00:01:41,159 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-25 00:01:41,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:41 BoogieIcfgContainer [2023-11-25 00:01:41,161 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:41,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:41,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:41,165 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:41,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:12" (3/4) ... [2023-11-25 00:01:41,169 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:01:41,173 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-25 00:01:41,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-25 00:01:41,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-25 00:01:41,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-25 00:01:41,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:01:41,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:01:41,295 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:01:41,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:41,295 INFO L158 Benchmark]: Toolchain (without parser) took 30277.69ms. Allocated memory was 77.6MB in the beginning and 627.0MB in the end (delta: 549.5MB). Free memory was 53.4MB in the beginning and 429.8MB in the end (delta: -376.4MB). Peak memory consumption was 175.0MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,296 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:41,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.59ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 41.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.07ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 39.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,297 INFO L158 Benchmark]: Boogie Preprocessor took 69.66ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:41,297 INFO L158 Benchmark]: RCFGBuilder took 547.97ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 37.6MB in the beginning and 61.4MB in the end (delta: -23.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,298 INFO L158 Benchmark]: TraceAbstraction took 29100.26ms. Allocated memory was 96.5MB in the beginning and 627.0MB in the end (delta: 530.6MB). Free memory was 60.7MB in the beginning and 435.1MB in the end (delta: -374.4MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,298 INFO L158 Benchmark]: Witness Printer took 130.08ms. Allocated memory is still 627.0MB. Free memory was 435.1MB in the beginning and 429.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-25 00:01:41,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.59ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 41.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.07ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 39.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.66ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 547.97ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 37.6MB in the beginning and 61.4MB in the end (delta: -23.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 29100.26ms. Allocated memory was 96.5MB in the beginning and 627.0MB in the end (delta: 530.6MB). Free memory was 60.7MB in the beginning and 435.1MB in the end (delta: -374.4MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. * Witness Printer took 130.08ms. Allocated memory is still 627.0MB. Free memory was 435.1MB in the beginning and 429.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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: 29.0s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, 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, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.8s 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! [2023-11-25 00:01:41,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade013d0-7ed4-44be-8786-19a2ce167a78/bin/utaipan-verify-SwPr7d2a91/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