./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c629da573e004159921914643ea74746a2df9f21fcd6971058637a927e2b9e2c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:44,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:44,374 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:44,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:44,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:44,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:44,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:44,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:44,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:44,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:44,407 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:44,408 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:44,408 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:44,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:44,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:44,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:44,411 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:44,411 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:44,412 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:44,412 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:44,413 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:44,414 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:44,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:44,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:44,420 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:44,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:44,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:44,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:44,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:44,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:44,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:44,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:44,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:44,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:44,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:44,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:44,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:44,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:44,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:44,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:44,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:44,424 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:44,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:44,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:44,425 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:44,426 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:44,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:44,426 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c629da573e004159921914643ea74746a2df9f21fcd6971058637a927e2b9e2c [2023-11-23 21:16:44,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:44,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:44,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:44,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:44,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:44,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:16:48,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:48,340 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:48,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:16:48,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/3b378698f/d4f3db1448464863829e6242dfd86037/FLAGc7ac03496 [2023-11-23 21:16:48,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/3b378698f/d4f3db1448464863829e6242dfd86037 [2023-11-23 21:16:48,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:48,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:48,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:48,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:48,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:48,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d64a566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48, skipping insertion in model container [2023-11-23 21:16:48,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,441 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:48,688 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i[919,932] [2023-11-23 21:16:48,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:48,777 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:48,788 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i[919,932] [2023-11-23 21:16:48,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:48,859 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:48,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48 WrapperNode [2023-11-23 21:16:48,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:48,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:48,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:48,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:48,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,936 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 171 [2023-11-23 21:16:48,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:48,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:48,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:48,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:48,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:48,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:48,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:48,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:48,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:49,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:49,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:49,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:49,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:49,254 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:49,259 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:49,751 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:50,148 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:50,149 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:50,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:50 BoogieIcfgContainer [2023-11-23 21:16:50,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:50,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:50,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:50,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:50,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:48" (1/3) ... [2023-11-23 21:16:50,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e9d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:50, skipping insertion in model container [2023-11-23 21:16:50,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (2/3) ... [2023-11-23 21:16:50,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e9d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:50, skipping insertion in model container [2023-11-23 21:16:50,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:50" (3/3) ... [2023-11-23 21:16:50,161 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:16:50,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:50,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:50,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:50,251 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;@2b8f7981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:50,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 21:16:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 21:16:50,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:50,272 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2023-11-23 21:16:50,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:50,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash -155527527, now seen corresponding path program 1 times [2023-11-23 21:16:50,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:50,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932671577] [2023-11-23 21:16:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:50,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:50,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:16:50,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82629799] [2023-11-23 21:16:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:50,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:50,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:50,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:50,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:52,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:16:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:52,527 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:16:52,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:16:52,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:16:52,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:16:52,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:16:52,748 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:16:52,754 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:16:52,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:16:52 BoogieIcfgContainer [2023-11-23 21:16:52,880 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:16:52,880 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:16:52,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:16:52,881 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:16:52,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:50" (3/4) ... [2023-11-23 21:16:52,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:16:52,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:16:52,890 INFO L158 Benchmark]: Toolchain (without parser) took 4520.15ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 83.2MB in the end (delta: 49.4MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,891 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:52,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.95ms. Allocated memory is still 167.8MB. Free memory was 132.2MB in the beginning and 128.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.00ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 123.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,901 INFO L158 Benchmark]: Boogie Preprocessor took 59.31ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,903 INFO L158 Benchmark]: RCFGBuilder took 1152.80ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 123.0MB in the end (delta: -1.2MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,903 INFO L158 Benchmark]: TraceAbstraction took 2726.58ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 83.2MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 21:16:52,904 INFO L158 Benchmark]: Witness Printer took 8.78ms. Allocated memory is still 167.8MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:52,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.95ms. Allocated memory is still 167.8MB. Free memory was 132.2MB in the beginning and 128.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.00ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 123.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.31ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1152.80ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 123.0MB in the end (delta: -1.2MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2726.58ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 83.2MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 8.78ms. Allocated memory is still 167.8MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 75, overapproximation of bitwiseAnd at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.05; [L23] double var_1_6 = 0.0; [L24] double var_1_7 = 49.5; [L25] double var_1_8 = 16.75; [L26] unsigned short int var_1_9 = 1; [L27] unsigned long int var_1_11 = 8; [L28] unsigned char var_1_12 = 0; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_14 = 32; [L31] unsigned char var_1_15 = 50; [L32] unsigned char var_1_16 = 8; [L33] unsigned char var_1_17 = 32; [L34] unsigned long int var_1_18 = 2; [L35] unsigned long int var_1_19 = 3876014737; [L36] unsigned char var_1_20 = 0; [L37] unsigned short int var_1_21 = 25; [L38] unsigned char var_1_27 = 1; [L39] unsigned char var_1_31 = 1; [L40] unsigned long int var_1_33 = 2; [L41] unsigned short int var_1_34 = 0; [L42] signed short int var_1_35 = -10; [L43] unsigned char var_1_40 = 2; [L44] unsigned short int var_1_42 = 8; [L45] unsigned long int var_1_44 = 1249494912; [L46] double last_1_var_1_1 = 5.05; [L47] unsigned short int last_1_var_1_9 = 1; [L48] unsigned long int last_1_var_1_11 = 8; [L49] unsigned char last_1_var_1_14 = 32; [L50] unsigned char last_1_var_1_20 = 0; [L161] isInitial = 1 [L162] FCALL initially() [L163] COND TRUE 1 [L164] CALL updateLastVariables() [L150] last_1_var_1_1 = var_1_1 [L151] last_1_var_1_9 = var_1_9 [L152] last_1_var_1_11 = var_1_11 [L153] last_1_var_1_14 = var_1_14 [L154] last_1_var_1_20 = var_1_20 [L164] RET updateLastVariables() [L165] CALL updateVariables() [L124] var_1_6 = __VERIFIER_nondet_double() [L125] CALL assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) [L125] RET assume_abort_if_not((var_1_6 >= 2305843.009213691390e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_7=99/2, var_1_8=67/4, var_1_9=1] [L126] var_1_7 = __VERIFIER_nondet_double() [L127] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_8=67/4, var_1_9=1] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 2305843.009213691390e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_8=67/4, var_1_9=1] [L128] var_1_8 = __VERIFIER_nondet_double() [L129] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L130] var_1_13 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L132] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=50, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L133] var_1_15 = __VERIFIER_nondet_uchar() [L134] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L135] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=8, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L136] var_1_16 = __VERIFIER_nondet_uchar() [L137] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L138] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=32, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L139] var_1_17 = __VERIFIER_nondet_uchar() [L140] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L141] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3876014737, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L142] var_1_19 = __VERIFIER_nondet_ulong() [L143] CALL assume_abort_if_not(var_1_19 >= 3221225470) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_19 >= 3221225470) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L144] CALL assume_abort_if_not(var_1_19 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_19 <= 4294967294) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1249494912, var_1_9=1] [L145] var_1_44 = __VERIFIER_nondet_ulong() [L146] CALL assume_abort_if_not(var_1_44 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_9=1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_44 >= 1073741823) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_9=1] [L147] CALL assume_abort_if_not(var_1_44 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_9=1] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_44 <= 2147483647) VAL [isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=8, var_1_12=0, var_1_13=1, var_1_14=32, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=2, var_1_19=3221225470, var_1_1=101/20, var_1_20=0, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=2, var_1_34=0, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_9=1] [L165] RET updateVariables() [L166] CALL step() [L54] COND TRUE \read(var_1_13) [L55] var_1_18 = ((var_1_19 - last_1_var_1_9) - last_1_var_1_11) [L59] COND TRUE var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1))) [L60] COND TRUE ! ((last_1_var_1_1 == var_1_7) && (last_1_var_1_20 || last_1_var_1_20)) [L61] COND TRUE ! (var_1_6 <= var_1_7) [L62] var_1_9 = ((((last_1_var_1_14) < (last_1_var_1_14)) ? (last_1_var_1_14) : (last_1_var_1_14))) [L68] COND TRUE (8 - 64) <= (var_1_9 - var_1_9) [L69] var_1_14 = (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))) [L73] signed long int stepLocal_0 = - ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))); [L74] COND FALSE !(var_1_18 >= stepLocal_0) [L77] var_1_1 = var_1_7 [L79] COND TRUE (var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14))) [L80] var_1_20 = var_1_13 [L82] COND TRUE \read(var_1_20) [L83] var_1_12 = var_1_13 [L85] var_1_11 = (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u)) [L86] COND FALSE !(((((var_1_9) < (var_1_14)) ? (var_1_9) : (var_1_14))) > var_1_18) [L89] COND TRUE (var_1_15 <= var_1_9) && var_1_20 [L90] EXPR var_1_17 & var_1_14 [L90] COND TRUE ! (((((var_1_19) > (var_1_15)) ? (var_1_19) : (var_1_15))) < (var_1_17 & var_1_14)) [L91] var_1_27 = var_1_13 [L100] COND FALSE !(var_1_17 > (- var_1_17)) [L103] var_1_33 = var_1_15 [L104] var_1_34 = (var_1_14 + 4) [L105] COND FALSE !(((var_1_7 - var_1_6) + var_1_6) == var_1_8) [L108] COND TRUE var_1_18 >= (~ var_1_19) [L109] var_1_40 = var_1_16 [L111] COND TRUE \read(var_1_13) [L112] COND FALSE !(var_1_19 < 1) [L166] RET step() [L167] CALL, EXPR property() [L157-L158] return (((((((var_1_18 >= (- ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))) ? (var_1_1 == ((double) (((var_1_6 - var_1_7) - ((((64.75) > (128.725)) ? (64.75) : (128.725)))) + var_1_8))) : (var_1_1 == ((double) var_1_7))) && ((var_1_6 > ((((var_1_8) < (last_1_var_1_1)) ? (var_1_8) : (last_1_var_1_1)))) ? ((! ((last_1_var_1_1 == var_1_7) && (last_1_var_1_20 || last_1_var_1_20))) ? ((! (var_1_6 <= var_1_7)) ? (var_1_9 == ((unsigned short int) ((((last_1_var_1_14) < (last_1_var_1_14)) ? (last_1_var_1_14) : (last_1_var_1_14))))) : 1) : (var_1_9 == ((unsigned short int) last_1_var_1_14))) : 1)) && (var_1_11 == ((unsigned long int) (var_1_9 + (((((var_1_18) < (var_1_9)) ? (var_1_18) : (var_1_9))) + 2u))))) && (var_1_20 ? (var_1_12 == ((unsigned char) var_1_13)) : 1)) && (((8 - 64) <= (var_1_9 - var_1_9)) ? (var_1_14 == ((unsigned char) (((((var_1_15 + var_1_16)) < (var_1_17)) ? ((var_1_15 + var_1_16)) : (var_1_17))))) : (var_1_14 == ((unsigned char) var_1_17)))) && (var_1_13 ? (var_1_18 == ((unsigned long int) ((var_1_19 - last_1_var_1_9) - last_1_var_1_11))) : (var_1_18 == ((unsigned long int) (((((var_1_19 - var_1_17)) > (var_1_15)) ? ((var_1_19 - var_1_17)) : (var_1_15))))))) && (((var_1_14 / var_1_19) <= ((((var_1_18) < (var_1_14)) ? (var_1_18) : (var_1_14)))) ? (var_1_20 == ((unsigned char) var_1_13)) : 1) ; [L167] RET, EXPR property() [L167] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=66, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=3221225461, var_1_19=3221225470, var_1_1=2, var_1_20=1, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=0, var_1_34=4, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_7=2, var_1_9=32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=8, last_1_var_1_14=32, last_1_var_1_1=101/20, last_1_var_1_20=0, last_1_var_1_9=1, var_1_11=66, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=0, var_1_16=2, var_1_17=0, var_1_18=3221225461, var_1_19=3221225470, var_1_1=2, var_1_20=1, var_1_21=25, var_1_27=1, var_1_31=1, var_1_33=0, var_1_34=4, var_1_35=-10, var_1_40=2, var_1_42=8, var_1_44=1073741823, var_1_7=2, var_1_9=32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:16:52,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c629da573e004159921914643ea74746a2df9f21fcd6971058637a927e2b9e2c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:55,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:55,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:16:55,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:55,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:55,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:55,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:55,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:55,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:55,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:55,900 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:55,901 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:55,901 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:55,903 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:55,904 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:55,904 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:55,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:55,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:55,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:55,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:55,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:55,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:55,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:55,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:55,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:16:55,910 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:16:55,911 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:16:55,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:55,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:55,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:55,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:55,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:16:55,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:55,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:55,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:55,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:55,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:55,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:55,916 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:16:55,917 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:16:55,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:55,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:55,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:55,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:55,919 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c629da573e004159921914643ea74746a2df9f21fcd6971058637a927e2b9e2c [2023-11-23 21:16:56,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:56,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:56,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:56,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:56,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:56,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:16:59,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:59,977 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:59,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:16:59,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/e428f8229/e7b7e24cdd8b47fda74386a0951d318c/FLAGae666794c [2023-11-23 21:17:00,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/data/e428f8229/e7b7e24cdd8b47fda74386a0951d318c [2023-11-23 21:17:00,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:00,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:00,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:00,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:00,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:00,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b4f758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00, skipping insertion in model container [2023-11-23 21:17:00,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:00,303 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i[919,932] [2023-11-23 21:17:00,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:00,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:17:00,494 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_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i[919,932] [2023-11-23 21:17:00,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:17:00,577 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:17:00,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00 WrapperNode [2023-11-23 21:17:00,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:00,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:00,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:17:00,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:17:00,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,672 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2023-11-23 21:17:00,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:17:00,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:17:00,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:17:00,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:17:00,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:17:00,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:17:00,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:17:00,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:17:00,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (1/1) ... [2023-11-23 21:17:00,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:00,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:17:00,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:17:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:17:00,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:17:00,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:17:00,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:17:00,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:17:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:17:00,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:17:01,001 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:17:01,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:17:06,006 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:06,121 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:06,123 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:06,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:06 BoogieIcfgContainer [2023-11-23 21:17:06,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:06,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:06,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:06,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:06,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:17:00" (1/3) ... [2023-11-23 21:17:06,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81eee53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:06, skipping insertion in model container [2023-11-23 21:17:06,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:00" (2/3) ... [2023-11-23 21:17:06,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81eee53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:06, skipping insertion in model container [2023-11-23 21:17:06,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:06" (3/3) ... [2023-11-23 21:17:06,137 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-70.i [2023-11-23 21:17:06,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:06,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:06,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:06,232 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;@4d7ab6dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:06,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 41 states have internal predecessors, (63), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 21:17:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:06,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:06,257 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:06,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:06,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2009444281, now seen corresponding path program 1 times [2023-11-23 21:17:06,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:06,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844682205] [2023-11-23 21:17:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:06,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:06,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:06,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:06,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:17:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:07,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:17:07,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 9 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 21:17:10,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:10,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:10,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844682205] [2023-11-23 21:17:10,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844682205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:17:10,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1720840244] [2023-11-23 21:17:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:10,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:10,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:17:10,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:17:10,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 21:17:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:11,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:17:11,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:11,559 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 21:17:11,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1720840244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:11,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:17:11,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2023-11-23 21:17:11,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635747993] [2023-11-23 21:17:11,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:11,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:11,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:17:11,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:11,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:17:11,604 INFO L87 Difference]: Start difference. First operand has 58 states, 40 states have (on average 1.575) internal successors, (63), 41 states have internal predecessors, (63), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:13,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:15,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:17,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:17,912 INFO L93 Difference]: Finished difference Result 147 states and 257 transitions. [2023-11-23 21:17:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:17,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 21:17:17,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:17,926 INFO L225 Difference]: With dead ends: 147 [2023-11-23 21:17:17,927 INFO L226 Difference]: Without dead ends: 90 [2023-11-23 21:17:17,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:17:17,938 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 38 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:17,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-11-23 21:17:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-23 21:17:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2023-11-23 21:17:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.4545454545454546) internal successors, (96), 67 states have internal predecessors, (96), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:17:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 132 transitions. [2023-11-23 21:17:17,992 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 132 transitions. Word has length 104 [2023-11-23 21:17:17,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:17,994 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 132 transitions. [2023-11-23 21:17:17,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:17,995 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 132 transitions. [2023-11-23 21:17:17,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:17,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:17,998 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:18,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:18,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-23 21:17:18,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:18,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:18,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash 291378309, now seen corresponding path program 1 times [2023-11-23 21:17:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:18,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258601457] [2023-11-23 21:17:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:18,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:18,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:18,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:18,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:17:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:19,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:17:19,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 33 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 21:17:19,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 21:17:20,016 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:20,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258601457] [2023-11-23 21:17:20,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258601457] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:17:20,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [7369731] [2023-11-23 21:17:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:20,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:20,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:17:20,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:17:20,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 21:17:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:20,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:17:20,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 21:17:20,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:20,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [7369731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:20,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:17:20,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 8 [2023-11-23 21:17:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9451818] [2023-11-23 21:17:20,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:17:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:17:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:17:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:17:20,772 INFO L87 Difference]: Start difference. First operand 87 states and 132 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:23,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:25,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:26,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:26,777 INFO L93 Difference]: Finished difference Result 240 states and 356 transitions. [2023-11-23 21:17:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:17:26,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 21:17:26,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:26,782 INFO L225 Difference]: With dead ends: 240 [2023-11-23 21:17:26,783 INFO L226 Difference]: Without dead ends: 154 [2023-11-23 21:17:26,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:17:26,785 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 116 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:26,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 230 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 21:17:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-23 21:17:26,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 97. [2023-11-23 21:17:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.486842105263158) internal successors, (113), 77 states have internal predecessors, (113), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:17:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 149 transitions. [2023-11-23 21:17:26,812 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 149 transitions. Word has length 104 [2023-11-23 21:17:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:26,816 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 149 transitions. [2023-11-23 21:17:26,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 149 transitions. [2023-11-23 21:17:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:26,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:26,822 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:26,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:27,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:27,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:27,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:27,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 549543747, now seen corresponding path program 1 times [2023-11-23 21:17:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:27,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749734412] [2023-11-23 21:17:27,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:27,234 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:27,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:17:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:27,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:17:27,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 33 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 21:17:28,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:17:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 21:17:28,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749734412] [2023-11-23 21:17:28,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749734412] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:17:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [745449115] [2023-11-23 21:17:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:17:28,828 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:17:28,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 21:17:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:29,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:17:29,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 21:17:30,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:30,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [745449115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:30,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:17:30,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-23 21:17:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026884633] [2023-11-23 21:17:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:30,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:17:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:17:30,752 INFO L87 Difference]: Start difference. First operand 97 states and 149 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:33,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:35,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:37,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:39,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:41,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:43,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:44,892 INFO L93 Difference]: Finished difference Result 373 states and 573 transitions. [2023-11-23 21:17:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:17:44,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 21:17:44,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:44,900 INFO L225 Difference]: With dead ends: 373 [2023-11-23 21:17:44,900 INFO L226 Difference]: Without dead ends: 277 [2023-11-23 21:17:44,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:17:44,903 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:44,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 280 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 5 Unknown, 0 Unchecked, 14.0s Time] [2023-11-23 21:17:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-23 21:17:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 222. [2023-11-23 21:17:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 181 states have (on average 1.4972375690607735) internal successors, (271), 183 states have internal predecessors, (271), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 21:17:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 343 transitions. [2023-11-23 21:17:44,946 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 343 transitions. Word has length 104 [2023-11-23 21:17:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:44,947 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 343 transitions. [2023-11-23 21:17:44,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 21:17:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 343 transitions. [2023-11-23 21:17:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:44,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:44,951 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:44,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:45,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:17:45,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:45,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:45,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash 156516737, now seen corresponding path program 1 times [2023-11-23 21:17:45,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:45,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241914589] [2023-11-23 21:17:45,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:45,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:45,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:45,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:45,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7657c91a-5e4f-48e7-a8c5-dda2fce1ad14/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process