./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ --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 ebfa0983e777f747b35ddf51685eed4bd631311b5aad9e37cee1c56108195d95 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:51,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:52,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:06:52,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:52,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:52,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:52,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:52,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:52,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:52,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:52,086 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:52,088 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:52,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:52,090 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:06:52,090 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:52,091 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:52,091 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:06:52,092 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:06:52,092 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:52,093 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:06:52,093 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:06:52,094 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:06:52,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:52,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:52,096 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:52,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:52,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:52,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:52,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:52,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:52,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:52,111 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:52,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:52,112 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:52,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:52,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:52,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:52,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:52,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:52,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:06:52,114 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:06:52,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:06:52,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:06:52,115 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:52,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:52,115 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebfa0983e777f747b35ddf51685eed4bd631311b5aad9e37cee1c56108195d95 [2023-11-19 05:06:52,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:52,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:52,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:52,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:52,387 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:52,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:06:55,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:55,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:55,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:06:55,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/7e71f3d00/c3f7446c452a4c1e915965742c06e866/FLAG237cccac4 [2023-11-19 05:06:55,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/7e71f3d00/c3f7446c452a4c1e915965742c06e866 [2023-11-19 05:06:55,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:55,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:55,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:55,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:55,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:55,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:55" (1/1) ... [2023-11-19 05:06:55,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec7d6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:55, skipping insertion in model container [2023-11-19 05:06:55,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:55" (1/1) ... [2023-11-19 05:06:55,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:56,036 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i[917,930] [2023-11-19 05:06:56,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:56,144 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:06:56,162 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i[917,930] [2023-11-19 05:06:56,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:56,215 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:06:56,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56 WrapperNode [2023-11-19 05:06:56,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:56,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:56,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:06:56,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:06:56,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,301 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-11-19 05:06:56,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:56,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:06:56,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:06:56,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:06:56,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:06:56,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:06:56,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:06:56,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:06:56,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (1/1) ... [2023-11-19 05:06:56,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:56,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:06:56,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:06:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:06:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:06:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:06:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:06:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:06:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:06:56,579 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:06:56,582 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:06:56,953 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:06:57,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:06:57,283 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:06:57,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:57 BoogieIcfgContainer [2023-11-19 05:06:57,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:06:57,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:06:57,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:06:57,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:06:57,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:06:55" (1/3) ... [2023-11-19 05:06:57,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e9a0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:57, skipping insertion in model container [2023-11-19 05:06:57,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:56" (2/3) ... [2023-11-19 05:06:57,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e9a0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:57, skipping insertion in model container [2023-11-19 05:06:57,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:57" (3/3) ... [2023-11-19 05:06:57,302 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:06:57,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:06:57,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:06:57,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:06:57,395 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;@1c71f7c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:06:57,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:06:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:06:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 05:06:57,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:57,417 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:06:57,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:57,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:57,427 INFO L85 PathProgramCache]: Analyzing trace with hash 226768748, now seen corresponding path program 1 times [2023-11-19 05:06:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:57,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599717477] [2023-11-19 05:06:57,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:06:57,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:06:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:06:58,038 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:06:58,040 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:06:58,041 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:06:58,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:06:58,049 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:06:58,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:06:58,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:06:58 BoogieIcfgContainer [2023-11-19 05:06:58,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:06:58,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:06:58,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:06:58,130 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:06:58,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:57" (3/4) ... [2023-11-19 05:06:58,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:06:58,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:06:58,139 INFO L158 Benchmark]: Toolchain (without parser) took 2308.83ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 73.8MB in the beginning and 87.9MB in the end (delta: -14.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,139 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:06:58,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.65ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 60.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.67ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 57.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,144 INFO L158 Benchmark]: Boogie Preprocessor took 63.49ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 56.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,149 INFO L158 Benchmark]: RCFGBuilder took 922.44ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 55.8MB in the beginning and 118.2MB in the end (delta: -62.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,150 INFO L158 Benchmark]: TraceAbstraction took 835.67ms. Allocated memory is still 165.7MB. Free memory was 117.3MB in the beginning and 87.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 05:06:58,151 INFO L158 Benchmark]: Witness Printer took 7.60ms. Allocated memory is still 165.7MB. Free memory was 87.9MB in the beginning and 87.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:06:58,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.65ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 60.6MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.67ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 57.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.49ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 56.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 922.44ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 55.8MB in the beginning and 118.2MB in the end (delta: -62.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 835.67ms. Allocated memory is still 165.7MB. Free memory was 117.3MB in the beginning and 87.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 7.60ms. Allocated memory is still 165.7MB. Free memory was 87.9MB in the beginning and 87.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of shiftLeft at line 48, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_4 = 19138; [L25] signed char var_1_6 = 25; [L26] signed long int var_1_7 = -50; [L27] double var_1_8 = 8.3; [L28] double var_1_9 = 255.6; [L29] double var_1_10 = 10000000.375; [L30] double var_1_11 = 0.0; [L31] double var_1_12 = 255.375; [L32] unsigned char var_1_13 = 50; [L33] unsigned char var_1_14 = 2; [L34] signed char var_1_15 = 1; [L35] signed char var_1_16 = 5; [L89] isInitial = 1 [L90] FCALL initially() [L91] COND TRUE 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L64] var_1_4 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L69] var_1_10 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L73] var_1_12 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L77] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L78] var_1_16 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L80] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=50, var_1_14=254, var_1_15=1, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=10000008] [L93] RET updateVariables() [L94] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 [L41] COND FALSE !(\read(var_1_2)) [L44] COND FALSE !(var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) [L47] unsigned short int stepLocal_0 = var_1_4; [L48] EXPR var_1_13 << var_1_13 [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L48] EXPR var_1_13 << var_1_13 [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L48] COND TRUE stepLocal_0 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)))) [L49] var_1_7 = (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))) [L53] unsigned char stepLocal_1 = var_1_13; [L54] COND FALSE !(var_1_13 < stepLocal_1) [L57] var_1_8 = ((var_1_11 - var_1_12) - var_1_9) [L94] RET step() [L95] CALL, EXPR property() [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) [L85] EXPR var_1_13 << var_1_13 [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L85] EXPR var_1_13 << var_1_13 [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) [L85-L86] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4)))))) && ((var_1_13 < var_1_13) ? (var_1_8 == ((double) (var_1_9 - var_1_10))) : (var_1_8 == ((double) ((var_1_11 - var_1_12) - var_1_9))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=254, var_1_14=254, var_1_15=-127, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=0, var_1_9=10000008] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000006, var_1_11=10000007, var_1_12=10000005, var_1_13=254, var_1_14=254, var_1_15=-127, var_1_16=-127, var_1_1=0, var_1_2=0, var_1_4=32767, var_1_6=25, var_1_7=0, var_1_9=10000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 12, 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=29occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:06:58,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ --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 ebfa0983e777f747b35ddf51685eed4bd631311b5aad9e37cee1c56108195d95 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:07:00,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:07:01,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:07:01,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:07:01,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:07:01,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:07:01,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:07:01,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:07:01,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:07:01,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:07:01,144 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:07:01,145 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:07:01,145 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:07:01,147 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:07:01,148 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:07:01,148 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:07:01,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:07:01,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:07:01,151 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:07:01,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:07:01,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:07:01,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:07:01,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:07:01,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:07:01,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:07:01,155 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:07:01,156 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:07:01,156 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:07:01,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:07:01,157 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:07:01,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:07:01,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:07:01,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:07:01,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:01,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:07:01,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:07:01,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:07:01,162 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:07:01,162 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:07:01,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:07:01,164 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:07:01,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:07:01,165 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebfa0983e777f747b35ddf51685eed4bd631311b5aad9e37cee1c56108195d95 [2023-11-19 05:07:01,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:07:01,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:07:01,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:07:01,670 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:07:01,670 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:07:01,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:07:04,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:07:05,091 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:07:05,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:07:05,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/bdedff271/df9254f73a6c47d286d7b1533b2f2c76/FLAG369f6594f [2023-11-19 05:07:05,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/data/bdedff271/df9254f73a6c47d286d7b1533b2f2c76 [2023-11-19 05:07:05,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:07:05,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:07:05,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:05,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:07:05,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:07:05,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6889c734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05, skipping insertion in model container [2023-11-19 05:07:05,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:05,330 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i[917,930] [2023-11-19 05:07:05,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:05,410 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:07:05,423 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_6e0689ec-09c1-41f8-862b-1be5a72e37c0/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-70.i[917,930] [2023-11-19 05:07:05,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:05,463 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:07:05,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05 WrapperNode [2023-11-19 05:07:05,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:05,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:05,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:07:05,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:07:05,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,547 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-19 05:07:05,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:05,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:07:05,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:07:05,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:07:05,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:07:05,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:07:05,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:07:05,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:07:05,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (1/1) ... [2023-11-19 05:07:05,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:05,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:05,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:07:05,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:07:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:07:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:07:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:07:05,713 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:07:05,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:07:05,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:07:05,845 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:07:05,848 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:07:07,117 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:07:07,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:07:07,132 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:07:07,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:07 BoogieIcfgContainer [2023-11-19 05:07:07,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:07:07,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:07:07,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:07:07,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:07:07,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:07:05" (1/3) ... [2023-11-19 05:07:07,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961bf5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:07, skipping insertion in model container [2023-11-19 05:07:07,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:05" (2/3) ... [2023-11-19 05:07:07,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961bf5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:07, skipping insertion in model container [2023-11-19 05:07:07,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:07" (3/3) ... [2023-11-19 05:07:07,147 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-70.i [2023-11-19 05:07:07,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:07:07,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:07:07,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:07:07,228 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;@1df1672, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:07:07,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:07:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:07:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:07:07,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:07,246 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:07,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:07:07,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:07,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1062525254, now seen corresponding path program 1 times [2023-11-19 05:07:07,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:07,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45015210] [2023-11-19 05:07:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:07,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:07,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:07,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:07:07,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:07:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:07,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:07:07,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-19 05:07:07,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:07,745 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45015210] [2023-11-19 05:07:07,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45015210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:07,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:07,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:07:07,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702387768] [2023-11-19 05:07:07,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:07,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:07:07,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:07,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:07:07,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:07:07,785 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:07:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:07,811 INFO L93 Difference]: Finished difference Result 83 states and 132 transitions. [2023-11-19 05:07:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:07:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-11-19 05:07:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:07,825 INFO L225 Difference]: With dead ends: 83 [2023-11-19 05:07:07,826 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:07:07,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:07:07,836 INFO L413 NwaCegarLoop]: 56 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, 56 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 [2023-11-19 05:07:07,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:07:07,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:07:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:07:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:07:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2023-11-19 05:07:07,891 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 83 [2023-11-19 05:07:07,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:07,892 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-19 05:07:07,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:07:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-19 05:07:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:07:07,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:07,900 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:07,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:08,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:08,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:07:08,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash 960529726, now seen corresponding path program 1 times [2023-11-19 05:07:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979360405] [2023-11-19 05:07:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:08,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:08,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:08,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:07:08,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:07:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:08,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 05:07:08,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 05:07:08,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:08,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:08,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979360405] [2023-11-19 05:07:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979360405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:08,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:08,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:07:08,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382888244] [2023-11-19 05:07:08,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:08,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:07:08,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:07:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:08,692 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 05:07:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:10,678 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2023-11-19 05:07:10,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:07:10,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2023-11-19 05:07:10,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:10,695 INFO L225 Difference]: With dead ends: 79 [2023-11-19 05:07:10,695 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 05:07:10,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:07:10,698 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:10,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 98 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 05:07:10,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 05:07:10,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 05:07:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 05:07:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2023-11-19 05:07:10,709 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 83 [2023-11-19 05:07:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:10,711 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2023-11-19 05:07:10,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 05:07:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2023-11-19 05:07:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:07:10,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:10,714 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:10,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:10,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:10,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:07:10,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash 962376768, now seen corresponding path program 1 times [2023-11-19 05:07:10,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:10,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821567637] [2023-11-19 05:07:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:10,923 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:10,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:10,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:07:10,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:07:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:11,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:07:11,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:07:12,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:12,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:12,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821567637] [2023-11-19 05:07:12,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821567637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:07:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1825754106] [2023-11-19 05:07:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:12,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:07:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:07:12,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:07:12,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 05:07:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:13,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:07:13,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:07:14,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1825754106] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:07:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541390383] [2023-11-19 05:07:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:14,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:07:14,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:14,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:07:14,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:07:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:15,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:07:15,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:07:15,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:15,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541390383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:07:15,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:07:15,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-19 05:07:15,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187215136] [2023-11-19 05:07:15,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:07:15,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:15,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:15,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:15,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:07:15,747 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:07:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:18,570 INFO L93 Difference]: Finished difference Result 111 states and 140 transitions. [2023-11-19 05:07:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:07:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 83 [2023-11-19 05:07:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:18,574 INFO L225 Difference]: With dead ends: 111 [2023-11-19 05:07:18,574 INFO L226 Difference]: Without dead ends: 73 [2023-11-19 05:07:18,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:07:18,576 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 70 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:18,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 123 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 05:07:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-19 05:07:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2023-11-19 05:07:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.127659574468085) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 05:07:18,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2023-11-19 05:07:18,603 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 83 [2023-11-19 05:07:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:18,604 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2023-11-19 05:07:18,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:07:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2023-11-19 05:07:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 05:07:18,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:18,608 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:18,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:18,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:19,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:19,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 05:07:19,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:07:19,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:19,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1642435138, now seen corresponding path program 1 times [2023-11-19 05:07:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:19,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234109857] [2023-11-19 05:07:19,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:19,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:07:19,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:19,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:07:19,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e0689ec-09c1-41f8-862b-1be5a72e37c0/bin/utaipan-verify-t7M7D8N6sZ/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 (7)] Waiting until timeout for monitored process [2023-11-19 05:07:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:19,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 05:07:19,580 INFO L285 TraceCheckSpWp]: Computing forward predicates...