./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/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_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/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_e461c47e-dadd-4ddd-b618-e7af21f1f115/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 b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:20:06,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:20:06,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:20:06,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:20:06,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:20:06,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:20:06,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:20:06,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:20:06,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:20:06,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:20:06,793 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:20:06,793 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:20:06,794 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:20:06,795 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:20:06,795 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:20:06,796 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:20:06,796 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:20:06,797 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:20:06,798 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:20:06,798 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:20:06,799 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:20:06,800 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:20:06,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:20:06,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:20:06,802 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:20:06,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:20:06,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:20:06,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:20:06,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:20:06,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:20:06,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:20:06,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:20:06,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:20:06,807 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:20:06,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:20:06,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:20:06,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:20:06,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:06,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:20:06,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:20:06,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:20:06,812 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:20:06,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:20:06,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:20:06,813 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:20:06,813 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:20:06,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:20:06,814 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_e461c47e-dadd-4ddd-b618-e7af21f1f115/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc [2023-11-24 23:20:07,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:20:07,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:20:07,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:20:07,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:20:07,128 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:20:07,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-11-24 23:20:10,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:20:10,761 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:20:10,762 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-11-24 23:20:10,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/data/26ec1cfcf/bfccda446db64872aae74aaa417123be/FLAG9ff7ff7ba [2023-11-24 23:20:10,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/data/26ec1cfcf/bfccda446db64872aae74aaa417123be [2023-11-24 23:20:10,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:20:10,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:20:10,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:10,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:20:10,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:20:10,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:10" (1/1) ... [2023-11-24 23:20:10,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7378496e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:10, skipping insertion in model container [2023-11-24 23:20:10,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:20:10" (1/1) ... [2023-11-24 23:20:10,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:20:10,987 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_e461c47e-dadd-4ddd-b618-e7af21f1f115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-11-24 23:20:11,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:11,046 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:20:11,060 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_e461c47e-dadd-4ddd-b618-e7af21f1f115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-11-24 23:20:11,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:20:11,105 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:20:11,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11 WrapperNode [2023-11-24 23:20:11,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:20:11,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:11,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:20:11,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:20:11,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,167 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-24 23:20:11,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:20:11,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:20:11,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:20:11,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:20:11,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:20:11,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:20:11,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:20:11,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:20:11,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (1/1) ... [2023-11-24 23:20:11,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:20:11,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:20:11,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:20:11,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:20:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:20:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:20:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:20:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:20:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:20:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:20:11,386 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:20:11,390 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:20:11,653 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:20:11,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:20:11,823 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:20:11,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:11 BoogieIcfgContainer [2023-11-24 23:20:11,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:20:11,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:20:11,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:20:11,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:20:11,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:20:10" (1/3) ... [2023-11-24 23:20:11,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378a1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:11, skipping insertion in model container [2023-11-24 23:20:11,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:20:11" (2/3) ... [2023-11-24 23:20:11,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378a1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:20:11, skipping insertion in model container [2023-11-24 23:20:11,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:11" (3/3) ... [2023-11-24 23:20:11,836 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-11-24 23:20:11,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:20:11,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:20:11,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:20:11,918 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;@76dd9c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:20:11,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:20:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-24 23:20:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 23:20:11,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:11,932 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:11,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:11,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1745971724, now seen corresponding path program 1 times [2023-11-24 23:20:11,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:20:11,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054260635] [2023-11-24 23:20:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:20:12,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:20:12,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515410402] [2023-11-24 23:20:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:20:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:20:12,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:20:12,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:20:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:12,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 23:20:12,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-24 23:20:14,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:20:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 23:20:17,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:20:17,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054260635] [2023-11-24 23:20:17,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:20:17,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515410402] [2023-11-24 23:20:17,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515410402] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-24 23:20:17,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:20:17,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-24 23:20:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061392780] [2023-11-24 23:20:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:17,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:20:17,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:20:17,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:20:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:20:17,403 INFO L87 Difference]: Start difference. First operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-24 23:20:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:17,619 INFO L93 Difference]: Finished difference Result 64 states and 88 transitions. [2023-11-24 23:20:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:20:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 33 [2023-11-24 23:20:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:17,628 INFO L225 Difference]: With dead ends: 64 [2023-11-24 23:20:17,629 INFO L226 Difference]: Without dead ends: 40 [2023-11-24 23:20:17,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:20:17,639 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:17,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 88 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:20:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-24 23:20:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2023-11-24 23:20:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 23:20:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2023-11-24 23:20:17,695 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 33 [2023-11-24 23:20:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:17,696 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2023-11-24 23:20:17,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-24 23:20:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2023-11-24 23:20:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 23:20:17,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:17,705 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-24 23:20:17,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:20:17,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:20:17,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:17,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash -368299995, now seen corresponding path program 1 times [2023-11-24 23:20:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:20:17,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312021114] [2023-11-24 23:20:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:17,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:20:17,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:20:17,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663726273] [2023-11-24 23:20:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:20:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:20:17,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:20:18,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:20:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:18,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:20:18,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-24 23:20:18,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:18,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:20:18,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312021114] [2023-11-24 23:20:18,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:20:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663726273] [2023-11-24 23:20:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663726273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:18,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:20:18,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747569617] [2023-11-24 23:20:18,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:18,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:20:18,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:20:18,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:20:18,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:20:18,187 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-24 23:20:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:18,227 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2023-11-24 23:20:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:20:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 65 [2023-11-24 23:20:18,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:18,229 INFO L225 Difference]: With dead ends: 40 [2023-11-24 23:20:18,229 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:20:18,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:20:18,231 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:18,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:20:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:20:18,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:20:18,234 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) [2023-11-24 23:20:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:20:18,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-11-24 23:20:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:18,234 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:20:18,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-24 23:20:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:20:18,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:20:18,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:20:18,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 23:20:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-24 23:20:18,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:20:18,593 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-24 23:20:18,594 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-24 23:20:18,594 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-24 23:20:18,594 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-24 23:20:18,595 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:20:18,597 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,597 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-11-24 23:20:18,597 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,601 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-11-24 23:20:18,602 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,602 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-24 23:20:18,603 INFO L895 garLoopResultBuilder]: At program point L90-3(lines 90 96) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~k_loop~0#1| 0) (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) (< 0 |ULTIMATE.start_main_~k_loop~0#1|)) [2023-11-24 23:20:18,603 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-11-24 23:20:18,604 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:20:18,604 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,604 INFO L895 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,605 INFO L899 garLoopResultBuilder]: For program point L76(lines 63 77) no Hoare annotation was computed. [2023-11-24 23:20:18,605 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,605 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (<= 0 (+ ~last_1_var_1_9~0 1)) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (<= 0 (+ ~var_1_9~0 1)) (<= 16384 (mod (+ 64 (* (mod ~var_1_7~0 256) 32767)) 32768)) (<= 16384 (mod (+ (* (mod ~last_1_var_1_7~0 256) 32767) 64) 32768))) [2023-11-24 23:20:18,606 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-24 23:20:18,606 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-24 23:20:18,609 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:20:18,612 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:20:18,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:20:18 BoogieIcfgContainer [2023-11-24 23:20:18,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:20:18,634 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:20:18,634 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:20:18,634 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:20:18,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:20:11" (3/4) ... [2023-11-24 23:20:18,638 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:20:18,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 23:20:18,650 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-11-24 23:20:18,651 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 23:20:18,652 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:20:18,652 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:20:18,779 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:20:18,779 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:20:18,780 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:20:18,780 INFO L158 Benchmark]: Toolchain (without parser) took 7986.17ms. Allocated memory was 155.2MB in the beginning and 285.2MB in the end (delta: 130.0MB). Free memory was 112.1MB in the beginning and 249.0MB in the end (delta: -136.9MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,781 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 113.2MB. Free memory was 65.7MB in the beginning and 65.5MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:20:18,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.76ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 99.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.62ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,782 INFO L158 Benchmark]: Boogie Preprocessor took 35.06ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,782 INFO L158 Benchmark]: RCFGBuilder took 620.84ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 68.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,783 INFO L158 Benchmark]: TraceAbstraction took 6804.82ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 67.6MB in the beginning and 69.3MB in the end (delta: -1.7MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,783 INFO L158 Benchmark]: Witness Printer took 145.82ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 69.3MB in the beginning and 249.0MB in the end (delta: -179.6MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-24 23:20:18,785 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 113.2MB. Free memory was 65.7MB in the beginning and 65.5MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.76ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 99.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.62ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 97.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.06ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.84ms. Allocated memory is still 155.2MB. Free memory was 95.9MB in the beginning and 68.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6804.82ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 67.6MB in the beginning and 69.3MB in the end (delta: -1.7MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. * Witness Printer took 145.82ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 69.3MB in the beginning and 249.0MB in the end (delta: -179.6MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 2, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 43 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=1, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 33 PreInvPairs, 43 NumberOfFragments, 329 HoareAnnotationTreeSize, 33 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 65 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 575 SizeOfPredicates, 15 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 360/367 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: 90]: Loop Invariant Derived loop invariant: ((((((k_loop == 0) && (0 <= (last_1_var_1_9 + 1))) && (0 <= (var_1_9 + 1))) && (16384 <= ((64 + ((var_1_7 % 256) * 32767)) % 32768))) && (16384 <= ((((last_1_var_1_7 % 256) * 32767) + 64) % 32768))) || (0 < k_loop)) RESULT: Ultimate proved your program to be correct! [2023-11-24 23:20:18,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e461c47e-dadd-4ddd-b618-e7af21f1f115/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