./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje --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 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:23:22,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:23:22,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:23:22,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:23:22,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:23:22,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:23:22,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:23:22,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:23:22,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:23:22,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:23:22,942 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:23:22,942 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:23:22,943 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:23:22,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:23:22,943 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:23:22,946 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:23:22,947 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:23:22,947 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:23:22,947 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:23:22,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:23:22,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:23:22,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:23:22,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:23:22,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:23:22,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:23:22,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:23:22,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:23:22,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:23:22,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:23:22,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:23:22,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:23:22,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:23:22,954 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:23:22,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:23:22,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:23:22,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:23:22,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:23:22,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:23:22,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:22,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:23:22,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:23:22,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:23:22,960 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:23:22,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:23:22,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:23:22,962 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:23:22,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:23:22,963 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_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 [2024-11-09 06:23:23,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:23:23,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:23:23,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:23:23,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:23:23,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:23:23,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 06:23:25,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:23:25,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:23:25,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-09 06:23:25,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/a0f8c84e1/9a79f77ca6024eaa8458a301757cca94/FLAG6288b8da2 [2024-11-09 06:23:25,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/a0f8c84e1/9a79f77ca6024eaa8458a301757cca94 [2024-11-09 06:23:25,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:23:25,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:23:25,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:25,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:23:25,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:23:25,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:25" (1/1) ... [2024-11-09 06:23:25,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517c598b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:25, skipping insertion in model container [2024-11-09 06:23:25,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:25" (1/1) ... [2024-11-09 06:23:25,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:23:26,472 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 06:23:26,473 WARN L250 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_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-09 06:23:26,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:26,486 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:23:26,542 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 06:23:26,544 WARN L250 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_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-09 06:23:26,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:26,721 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:23:26,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26 WrapperNode [2024-11-09 06:23:26,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:26,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:26,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:23:26,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:23:26,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,783 INFO L138 Inliner]: procedures = 557, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-11-09 06:23:26,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:26,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:23:26,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:23:26,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:23:26,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:23:26,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:23:26,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:23:26,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:23:26,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (1/1) ... [2024-11-09 06:23:26,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:26,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:26,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:23:26,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:23:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:23:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:23:26,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:23:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:23:26,998 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:23:27,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:23:27,070 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 06:23:27,070 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:23:27,119 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:23:27,120 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:23:27,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:27 BoogieIcfgContainer [2024-11-09 06:23:27,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:23:27,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:23:27,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:23:27,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:23:27,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:23:25" (1/3) ... [2024-11-09 06:23:27,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ca19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:27, skipping insertion in model container [2024-11-09 06:23:27,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:26" (2/3) ... [2024-11-09 06:23:27,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168ca19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:27, skipping insertion in model container [2024-11-09 06:23:27,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:27" (3/3) ... [2024-11-09 06:23:27,129 INFO L112 eAbstractionObserver]: Analyzing ICFG log_3_unsafe.c-amalgamation.i [2024-11-09 06:23:27,149 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:23:27,150 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:23:27,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:23:27,220 INFO L333 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, 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;@74b993cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:23:27,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:23:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-11-09 06:23:27,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:23:27,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:27,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:23:27,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:23:27,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:27,239 INFO L85 PathProgramCache]: Analyzing trace with hash 64003, now seen corresponding path program 1 times [2024-11-09 06:23:27,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:27,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250527630] [2024-11-09 06:23:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:27,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:23:27,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:23:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:23:27,452 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:23:27,454 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:23:27,456 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:23:27,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:23:27,463 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:23:27,478 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:23:27,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:23:27 BoogieIcfgContainer [2024-11-09 06:23:27,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:23:27,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:23:27,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:23:27,482 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:23:27,483 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:27" (3/4) ... [2024-11-09 06:23:27,485 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:23:27,486 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:23:27,488 INFO L158 Benchmark]: Toolchain (without parser) took 1805.57ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.8MB in the beginning and 110.2MB in the end (delta: -33.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2024-11-09 06:23:27,488 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:27,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1038.62ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.8MB in the beginning and 91.6MB in the end (delta: -14.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-11-09 06:23:27,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.39ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 88.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:27,491 INFO L158 Benchmark]: Boogie Preprocessor took 25.72ms. Allocated memory is still 148.9MB. Free memory was 88.8MB in the beginning and 87.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:27,492 INFO L158 Benchmark]: RCFGBuilder took 309.01ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 75.6MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 06:23:27,494 INFO L158 Benchmark]: TraceAbstraction took 358.78ms. Allocated memory is still 148.9MB. Free memory was 74.9MB in the beginning and 110.2MB in the end (delta: -35.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:27,495 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 148.9MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:27,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1038.62ms. Allocated memory was 115.3MB in the beginning and 148.9MB in the end (delta: 33.6MB). Free memory was 76.8MB in the beginning and 91.6MB in the end (delta: -14.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.39ms. Allocated memory is still 148.9MB. Free memory was 91.6MB in the beginning and 88.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.72ms. Allocated memory is still 148.9MB. Free memory was 88.8MB in the beginning and 87.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.01ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 75.6MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 358.78ms. Allocated memory is still 148.9MB. Free memory was 74.9MB in the beginning and 110.2MB in the end (delta: -35.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 148.9MB. Free memory is still 110.2MB. 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: 854]: 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 854, overapproximation of someBinaryArithmeticFLOAToperation at line 848. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] EXPR __builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1) [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d1 = 1.0f / x1; [L854] COND TRUE !(__builtin_isgreaterequal(derivative, d1)) [L854] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 [2024-11-09 06:23:27,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje --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 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:23:29,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:23:30,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:23:30,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:23:30,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:23:30,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:23:30,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:23:30,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:23:30,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:23:30,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:23:30,116 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:23:30,116 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:23:30,117 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:23:30,119 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:23:30,120 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:23:30,120 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:23:30,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:23:30,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:23:30,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:23:30,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:23:30,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:23:30,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:23:30,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:23:30,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:23:30,128 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:23:30,128 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:23:30,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:23:30,129 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:23:30,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:23:30,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:23:30,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:23:30,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:23:30,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:23:30,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:23:30,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:23:30,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:30,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:23:30,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:23:30,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:23:30,136 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:23:30,137 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:23:30,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:23:30,148 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:23:30,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4360cde805fca4bb5ca2d15d973a3fd5e612720e03062de7a6b01b6630e7f545 [2024-11-09 06:23:30,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:23:30,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:23:30,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:23:30,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:23:30,593 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:23:30,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 06:23:32,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:23:33,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:23:33,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i [2024-11-09 06:23:33,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/08627b727/44b13a925ca04246891a579da84e5d89/FLAG0ea6a818c [2024-11-09 06:23:33,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/data/08627b727/44b13a925ca04246891a579da84e5d89 [2024-11-09 06:23:33,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:23:33,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:23:33,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:33,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:23:33,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:23:33,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:33" (1/1) ... [2024-11-09 06:23:33,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cb122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:33, skipping insertion in model container [2024-11-09 06:23:33,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:33" (1/1) ... [2024-11-09 06:23:33,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:23:34,186 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 06:23:34,187 WARN L250 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_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-09 06:23:34,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:34,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:23:34,314 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 06:23:34,316 WARN L250 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_85c85786-8cba-4e76-87a5-136e023c3633/sv-benchmarks/c/neural-networks/log_3_unsafe.c-amalgamation.i[63160,63173] [2024-11-09 06:23:34,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:34,471 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:23:34,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34 WrapperNode [2024-11-09 06:23:34,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:34,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:34,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:23:34,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:23:34,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,539 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-11-09 06:23:34,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:34,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:23:34,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:23:34,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:23:34,551 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:23:34,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:23:34,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:23:34,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:23:34,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (1/1) ... [2024-11-09 06:23:34,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:34,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:34,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:23:34,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:23:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:23:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:23:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:23:34,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:23:34,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:23:34,787 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:23:37,012 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:23:37,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:23:37,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:23:37,021 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:23:37,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:37 BoogieIcfgContainer [2024-11-09 06:23:37,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:23:37,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:23:37,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:23:37,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:23:37,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:23:33" (1/3) ... [2024-11-09 06:23:37,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b6d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:37, skipping insertion in model container [2024-11-09 06:23:37,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:34" (2/3) ... [2024-11-09 06:23:37,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b6d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:37, skipping insertion in model container [2024-11-09 06:23:37,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:37" (3/3) ... [2024-11-09 06:23:37,037 INFO L112 eAbstractionObserver]: Analyzing ICFG log_3_unsafe.c-amalgamation.i [2024-11-09 06:23:37,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:23:37,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:23:37,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:23:37,117 INFO L333 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, 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;@4f87248b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:23:37,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:23:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-09 06:23:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:23:37,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:37,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:23:37,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:23:37,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:37,134 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-09 06:23:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:23:37,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553742840] [2024-11-09 06:23:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:37,146 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 [2024-11-09 06:23:37,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:23:37,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:23:37,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:23:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:37,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:23:37,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:37,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:23:37,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:23:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553742840] [2024-11-09 06:23:37,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553742840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:37,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:23:37,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28546930] [2024-11-09 06:23:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:37,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:23:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:23:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:23:37,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:23:37,636 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-09 06:23:37,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:37,648 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-09 06:23:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:23:37,651 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2024-11-09 06:23:37,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:37,659 INFO L225 Difference]: With dead ends: 19 [2024-11-09 06:23:37,659 INFO L226 Difference]: Without dead ends: 7 [2024-11-09 06:23:37,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:23:37,668 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:37,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:23:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-09 06:23:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-09 06:23:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2024-11-09 06:23:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-09 06:23:37,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-09 06:23:37,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:37,706 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-09 06:23:37,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-09 06:23:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-09 06:23:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:23:37,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:37,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:23:37,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:23:37,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:23:37,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:23:37,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:37,910 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-09 06:23:37,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:23:37,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294534851] [2024-11-09 06:23:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:37,911 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 [2024-11-09 06:23:37,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:23:37,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:23:37,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:23:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:23:38,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:23:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:23:38,696 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:23:38,697 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:23:38,699 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:23:38,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:23:38,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:23:38,908 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:23:38,924 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:23:38,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:23:38 BoogieIcfgContainer [2024-11-09 06:23:38,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:23:38,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:23:38,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:23:38,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:23:38,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:37" (3/4) ... [2024-11-09 06:23:38,932 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:23:38,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:23:38,934 INFO L158 Benchmark]: Toolchain (without parser) took 5679.53ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 52.4MB in the beginning and 53.2MB in the end (delta: -807.7kB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,934 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 79.7MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:38,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1214.21ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 52.4MB in the beginning and 61.9MB in the end (delta: -9.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.80ms. Allocated memory is still 104.9MB. Free memory was 61.9MB in the beginning and 58.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,936 INFO L158 Benchmark]: Boogie Preprocessor took 48.99ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,937 INFO L158 Benchmark]: RCFGBuilder took 2431.26ms. Allocated memory is still 104.9MB. Free memory was 57.2MB in the beginning and 47.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,938 INFO L158 Benchmark]: TraceAbstraction took 1897.89ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 54.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:23:38,938 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 104.9MB. Free memory was 54.0MB in the beginning and 53.2MB in the end (delta: 770.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:23:38,941 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 79.7MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1214.21ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 52.4MB in the beginning and 61.9MB in the end (delta: -9.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.80ms. Allocated memory is still 104.9MB. Free memory was 61.9MB in the beginning and 58.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.99ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2431.26ms. Allocated memory is still 104.9MB. Free memory was 57.2MB in the beginning and 47.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1897.89ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 54.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 104.9MB. Free memory was 54.0MB in the beginning and 53.2MB in the end (delta: 770.6kB). 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: 854]: 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 logf at line 850, overapproximation of __builtin_isinf_sign at line 849. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; VAL [x1=8589934592] [L849] COND FALSE !(!(__builtin_isgreaterequal(x1, 0.0f) && !__builtin_isinf_sign (x1))) [L850] float y1 = logf(x1); [L851] float y2 = logf(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] float d1 = 1.0f / x1; VAL [d1=0.00000000011641532182693481, derivative=0.0] [L854] COND TRUE !(__builtin_isgreaterequal(derivative, d1)) [L854] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2024-11-09 06:23:39,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c85786-8cba-4e76-87a5-136e023c3633/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample