./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.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_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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_53a75453-2880-4b18-9daf-fac9465e17c4/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 d56acd250e6c5d84ca647c37fda02db02ab1c057795db0fe803ca93fcfd75ada --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:26,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:26,929 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:26,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:26,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:26,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:26,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:26,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:26,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:26,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:26,971 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:26,972 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:26,972 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:26,974 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:26,975 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:26,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:26,976 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:26,976 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:26,976 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:26,977 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:26,977 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:26,978 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:26,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:26,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:26,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:26,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:26,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:26,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:26,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:26,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:26,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:26,984 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:26,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:26,984 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:26,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:26,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:26,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:26,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:26,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:26,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:26,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:26,986 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:26,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:26,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:26,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:26,988 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:26,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:26,988 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_53a75453-2880-4b18-9daf-fac9465e17c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d56acd250e6c5d84ca647c37fda02db02ab1c057795db0fe803ca93fcfd75ada [2023-11-23 21:09:27,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:27,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:27,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:27,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:27,275 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:27,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:30,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:30,716 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:30,716 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:30,727 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/8f5d7a840/6a903099c5284960b652b74c99abecec/FLAG3024ef18c [2023-11-23 21:09:30,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/8f5d7a840/6a903099c5284960b652b74c99abecec [2023-11-23 21:09:30,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:30,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:30,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:30,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:30,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:30,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:30" (1/1) ... [2023-11-23 21:09:30,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9e4a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:30, skipping insertion in model container [2023-11-23 21:09:30,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:30" (1/1) ... [2023-11-23 21:09:30,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:30,937 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_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i[919,932] [2023-11-23 21:09:31,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:31,027 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:31,044 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_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i[919,932] [2023-11-23 21:09:31,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:31,147 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:31,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31 WrapperNode [2023-11-23 21:09:31,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:31,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:31,150 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:31,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:31,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,240 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 238 [2023-11-23 21:09:31,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:31,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:31,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:31,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:31,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:31,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:31,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:31,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:31,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (1/1) ... [2023-11-23 21:09:31,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:31,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:31,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:31,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:31,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:31,481 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:31,484 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:31,999 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:32,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:32,487 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:32,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:32 BoogieIcfgContainer [2023-11-23 21:09:32,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:32,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:32,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:32,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:32,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:30" (1/3) ... [2023-11-23 21:09:32,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a459ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:32, skipping insertion in model container [2023-11-23 21:09:32,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:31" (2/3) ... [2023-11-23 21:09:32,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a459ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:32, skipping insertion in model container [2023-11-23 21:09:32,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:32" (3/3) ... [2023-11-23 21:09:32,505 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:32,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:32,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:32,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:32,596 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;@49722801, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:32,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:09:32,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:32,614 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:32,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:32,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1857964733, now seen corresponding path program 1 times [2023-11-23 21:09:32,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:32,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786340583] [2023-11-23 21:09:32,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:32,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:32,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:09:32,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181708216] [2023-11-23 21:09:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:32,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:32,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:32,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:32,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:33,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:33,364 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:33,370 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:33,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:33,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:33,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:33,597 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:33,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:33,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:33 BoogieIcfgContainer [2023-11-23 21:09:33,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:33,707 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:33,707 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:33,707 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:33,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:32" (3/4) ... [2023-11-23 21:09:33,710 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:33,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:33,712 INFO L158 Benchmark]: Toolchain (without parser) took 2966.57ms. Allocated memory is still 184.5MB. Free memory was 150.9MB in the beginning and 131.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:09:33,713 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:33,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.42ms. Allocated memory is still 184.5MB. Free memory was 150.4MB in the beginning and 135.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:09:33,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.01ms. Allocated memory is still 184.5MB. Free memory was 135.4MB in the beginning and 130.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:09:33,715 INFO L158 Benchmark]: Boogie Preprocessor took 50.23ms. Allocated memory is still 184.5MB. Free memory was 130.7MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:33,716 INFO L158 Benchmark]: RCFGBuilder took 1197.74ms. Allocated memory is still 184.5MB. Free memory was 128.6MB in the beginning and 101.5MB in the end (delta: 27.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:33,716 INFO L158 Benchmark]: TraceAbstraction took 1211.21ms. Allocated memory is still 184.5MB. Free memory was 100.5MB in the beginning and 131.2MB in the end (delta: -30.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:33,717 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 184.5MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:33,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.42ms. Allocated memory is still 184.5MB. Free memory was 150.4MB in the beginning and 135.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.01ms. Allocated memory is still 184.5MB. Free memory was 135.4MB in the beginning and 130.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.23ms. Allocated memory is still 184.5MB. Free memory was 130.7MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1197.74ms. Allocated memory is still 184.5MB. Free memory was 128.6MB in the beginning and 101.5MB in the end (delta: 27.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1211.21ms. Allocated memory is still 184.5MB. Free memory was 100.5MB in the beginning and 131.2MB in the end (delta: -30.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 184.5MB. Free memory is still 131.2MB. 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 someBinaryFLOATComparisonOperation at line 170, overapproximation of bitwiseOr at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 57. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 1; [L26] unsigned char var_1_8 = 32; [L27] double var_1_9 = 4.6; [L28] double var_1_10 = 9.25; [L29] double var_1_11 = 1.25; [L30] unsigned char var_1_12 = 100; [L31] unsigned char var_1_13 = 64; [L32] unsigned char var_1_14 = 0; [L33] float var_1_15 = 7.5; [L34] signed long int var_1_16 = 0; [L35] unsigned char var_1_17 = 1; [L36] double var_1_21 = 4.65; [L37] double var_1_23 = 9999999999.1; [L38] double var_1_24 = 5.5; [L39] unsigned short int var_1_25 = 16; [L40] signed long int var_1_27 = 32; [L41] signed char var_1_31 = 32; [L42] signed char var_1_32 = 32; [L43] signed short int var_1_33 = 100; [L44] unsigned char var_1_34 = 1; [L45] double var_1_35 = 3.8; [L46] signed short int var_1_37 = -256; [L47] unsigned short int var_1_38 = 4; [L48] double last_1_var_1_9 = 4.6; [L49] unsigned char last_1_var_1_12 = 100; [L50] unsigned char last_1_var_1_14 = 0; [L51] signed long int last_1_var_1_16 = 0; [L174] isInitial = 1 [L175] FCALL initially() [L176] COND TRUE 1 [L177] CALL updateLastVariables() [L164] last_1_var_1_9 = var_1_9 [L165] last_1_var_1_12 = var_1_12 [L166] last_1_var_1_14 = var_1_14 [L167] last_1_var_1_16 = var_1_16 [L177] RET updateLastVariables() [L178] CALL updateVariables() [L134] var_1_5 = __VERIFIER_nondet_uchar() [L135] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L136] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L137] var_1_7 = __VERIFIER_nondet_uchar() [L138] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L139] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L140] var_1_8 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L142] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L143] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L144] var_1_10 = __VERIFIER_nondet_double() [L145] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L146] var_1_13 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L148] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_23=99999999991/10, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L149] var_1_23 = __VERIFIER_nondet_double() [L150] CALL assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_24=11/2, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L151] var_1_24 = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not((var_1_24 >= 0.0F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not((var_1_24 >= 0.0F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854765600e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=32, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L153] var_1_31 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_31 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_31 >= -127) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L155] CALL assume_abort_if_not(var_1_31 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_31 <= 127) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=32, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L156] var_1_32 = __VERIFIER_nondet_char() [L157] CALL assume_abort_if_not(var_1_32 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_32 >= 0) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L158] CALL assume_abort_if_not(var_1_32 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_32 <= 127) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_35=19/5, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L159] var_1_35 = __VERIFIER_nondet_double() [L160] CALL assume_abort_if_not((var_1_35 >= -922337.2036854776000e+13F && var_1_35 <= -1.0e-20F) || (var_1_35 <= 9223372.036854776000e+12F && var_1_35 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not((var_1_35 >= -922337.2036854776000e+13F && var_1_35 <= -1.0e-20F) || (var_1_35 <= 9223372.036854776000e+12F && var_1_35 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L161] CALL assume_abort_if_not(var_1_35 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_35 != 0.0F) VAL [isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_11=5/4, var_1_12=100, var_1_13=99, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_17=1, var_1_1=1, var_1_21=93/20, var_1_25=16, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=100, var_1_34=1, var_1_37=-256, var_1_38=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=23/5] [L178] RET updateVariables() [L179] CALL step() [L55] signed long int stepLocal_4 = last_1_var_1_16; [L56] COND FALSE !(\read(last_1_var_1_14)) [L67] var_1_12 = var_1_13 [L69] var_1_16 = last_1_var_1_12 [L70] unsigned long int stepLocal_6 = var_1_13 % (5u + 256u); [L71] signed long int stepLocal_5 = var_1_13 + 16; [L72] COND TRUE stepLocal_6 <= var_1_16 [L73] COND TRUE stepLocal_5 >= var_1_16 [L74] var_1_14 = var_1_7 [L79] unsigned char stepLocal_0 = var_1_12; [L80] EXPR var_1_12 ^ var_1_12 [L80] COND FALSE !(stepLocal_0 <= (var_1_12 ^ var_1_12)) [L83] var_1_1 = (! var_1_5) [L85] unsigned char stepLocal_2 = var_1_12 < (var_1_16 / var_1_8); [L86] signed long int stepLocal_1 = var_1_16; [L87] COND FALSE !(-256 >= stepLocal_1) [L90] COND FALSE !(stepLocal_2 || ((var_1_5 && var_1_7) && var_1_1)) [L94] unsigned char stepLocal_3 = ! var_1_5; [L95] COND TRUE (var_1_7 && var_1_14) || stepLocal_3 [L96] var_1_11 = var_1_10 [L98] var_1_15 = var_1_10 [L99] COND TRUE ((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8) [L100] var_1_9 = var_1_10 [L102] var_1_17 = (var_1_5 || (var_1_14 && var_1_5)) [L103] COND FALSE !(! var_1_7) [L106] var_1_25 = var_1_8 [L107] COND FALSE !(((((var_1_10) > (var_1_24)) ? (var_1_10) : (var_1_24))) > var_1_23) [L120] var_1_33 = var_1_31 [L121] COND TRUE var_1_31 >= var_1_32 [L122] COND TRUE (var_1_12 > var_1_16) || var_1_14 [L123] var_1_34 = ((var_1_1 && var_1_5) || var_1_5) [L128] EXPR var_1_8 | var_1_8 [L128] EXPR var_1_13 ^ (var_1_8 | var_1_8) [L128] EXPR var_1_31 ^ var_1_8 [L128] COND TRUE (var_1_13 ^ (var_1_8 | var_1_8)) < (var_1_31 ^ var_1_8) [L129] var_1_37 = var_1_31 [L131] var_1_38 = var_1_12 [L179] RET step() [L180] CALL, EXPR property() [L170] EXPR var_1_12 ^ var_1_12 [L170-L171] return ((((((((var_1_12 <= (var_1_12 ^ var_1_12)) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) (! var_1_5)))) && ((-256 >= var_1_16) ? (var_1_6 == ((unsigned char) (var_1_1 || var_1_7))) : (((var_1_12 < (var_1_16 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1)) ? (var_1_6 == ((unsigned char) var_1_7)) : 1))) && ((((((((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) > (var_1_12)) ? (((((var_1_16) < (var_1_12)) ? (var_1_16) : (var_1_12)))) : (var_1_12))) <= (50 * var_1_8)) ? (var_1_9 == ((double) var_1_10)) : 1)) && (((var_1_7 && var_1_14) || (! var_1_5)) ? (var_1_11 == ((double) var_1_10)) : 1)) && (last_1_var_1_14 ? ((var_1_10 >= (- last_1_var_1_9)) ? ((var_1_8 != last_1_var_1_16) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) 50))) : (var_1_12 == ((unsigned char) var_1_13))) : (var_1_12 == ((unsigned char) var_1_13)))) && (((var_1_13 % (5u + 256u)) <= var_1_16) ? (((var_1_13 + 16) >= var_1_16) ? (var_1_14 == ((unsigned char) var_1_7)) : (var_1_14 == ((unsigned char) var_1_7))) : 1)) && (var_1_15 == ((float) var_1_10))) && (var_1_16 == ((signed long int) last_1_var_1_12)) ; [L180] RET, EXPR property() [L180] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=99, var_1_13=99, var_1_14=1, var_1_15=2, var_1_16=100, var_1_17=0, var_1_1=1, var_1_21=93/20, var_1_25=3, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=0, var_1_34=0, var_1_37=0, var_1_38=99, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=100, last_1_var_1_14=0, last_1_var_1_16=0, last_1_var_1_9=23/5, var_1_10=2, var_1_11=2, var_1_12=99, var_1_13=99, var_1_14=1, var_1_15=2, var_1_16=100, var_1_17=0, var_1_1=1, var_1_21=93/20, var_1_25=3, var_1_27=32, var_1_31=0, var_1_32=0, var_1_33=0, var_1_34=0, var_1_37=0, var_1_38=99, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=3, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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 21:09:33,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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_53a75453-2880-4b18-9daf-fac9465e17c4/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 d56acd250e6c5d84ca647c37fda02db02ab1c057795db0fe803ca93fcfd75ada --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:36,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:36,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:36,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:36,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:36,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:36,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:36,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:36,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:36,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:36,638 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:36,638 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:36,639 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:36,641 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:36,641 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:36,642 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:36,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:36,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:36,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:36,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:36,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:36,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:36,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:36,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:36,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:36,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:36,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:36,649 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:36,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:36,650 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:36,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:36,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:36,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:36,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:36,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:36,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:36,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:36,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:36,655 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:36,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:36,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:36,656 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:36,657 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:36,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:36,658 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_53a75453-2880-4b18-9daf-fac9465e17c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d56acd250e6c5d84ca647c37fda02db02ab1c057795db0fe803ca93fcfd75ada [2023-11-23 21:09:37,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:37,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:37,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:37,135 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:37,135 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:37,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:40,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:40,553 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:40,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:40,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/c406289dd/4418e4560a1a4cb6a4bafb97d4412699/FLAG543bd3e01 [2023-11-23 21:09:40,580 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/data/c406289dd/4418e4560a1a4cb6a4bafb97d4412699 [2023-11-23 21:09:40,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:40,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:40,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:40,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:40,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:40,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:40" (1/1) ... [2023-11-23 21:09:40,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e808492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:40, skipping insertion in model container [2023-11-23 21:09:40,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:40" (1/1) ... [2023-11-23 21:09:40,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:40,826 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_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i[919,932] [2023-11-23 21:09:40,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:40,956 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:40,977 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_53a75453-2880-4b18-9daf-fac9465e17c4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i[919,932] [2023-11-23 21:09:41,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:41,091 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:41,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41 WrapperNode [2023-11-23 21:09:41,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:41,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:41,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:41,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:41,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,165 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2023-11-23 21:09:41,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:41,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:41,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:41,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:41,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:41,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:41,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:41,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:41,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (1/1) ... [2023-11-23 21:09:41,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:41,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:41,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:41,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:41,475 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:41,480 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:44,794 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:44,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:44,872 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:44,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:44 BoogieIcfgContainer [2023-11-23 21:09:44,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:44,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:44,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:44,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:44,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:40" (1/3) ... [2023-11-23 21:09:44,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb1b5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:44, skipping insertion in model container [2023-11-23 21:09:44,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:41" (2/3) ... [2023-11-23 21:09:44,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb1b5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:44, skipping insertion in model container [2023-11-23 21:09:44,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:44" (3/3) ... [2023-11-23 21:09:44,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-68.i [2023-11-23 21:09:44,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:44,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:44,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:44,965 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;@67adb2f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:44,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 21:09:44,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:44,995 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:44,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:45,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 976226181, now seen corresponding path program 1 times [2023-11-23 21:09:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:45,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080884854] [2023-11-23 21:09:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:45,013 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 21:09:45,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:45,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:45,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:46,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:09:46,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-23 21:09:46,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:46,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:46,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080884854] [2023-11-23 21:09:46,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080884854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:46,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:46,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:09:46,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844988203] [2023-11-23 21:09:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:46,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:09:46,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:09:46,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:46,175 INFO L87 Difference]: Start difference. First operand has 67 states, 46 states have (on average 1.5) internal successors, (69), 47 states have internal predecessors, (69), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:09:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:46,578 INFO L93 Difference]: Finished difference Result 131 states and 226 transitions. [2023-11-23 21:09:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:09:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2023-11-23 21:09:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:46,596 INFO L225 Difference]: With dead ends: 131 [2023-11-23 21:09:46,596 INFO L226 Difference]: Without dead ends: 65 [2023-11-23 21:09:46,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:09:46,604 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:46,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:09:46,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-23 21:09:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-23 21:09:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:46,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 100 transitions. [2023-11-23 21:09:46,654 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 100 transitions. Word has length 123 [2023-11-23 21:09:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:46,655 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 100 transitions. [2023-11-23 21:09:46,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 21:09:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 100 transitions. [2023-11-23 21:09:46,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 21:09:46,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:46,660 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:46,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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)] Ended with exit code 0 [2023-11-23 21:09:46,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:46,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:46,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:46,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1277519163, now seen corresponding path program 1 times [2023-11-23 21:09:46,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:46,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999342352] [2023-11-23 21:09:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:46,876 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 21:09:46,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:46,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:46,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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)] Waiting until timeout for monitored process [2023-11-23 21:09:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:47,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:09:47,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 21:09:48,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:48,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:48,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999342352] [2023-11-23 21:09:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999342352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:48,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:48,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:09:48,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804081688] [2023-11-23 21:09:48,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:09:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:09:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:09:48,249 INFO L87 Difference]: Start difference. First operand 65 states and 100 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 21:09:49,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:49,125 INFO L93 Difference]: Finished difference Result 129 states and 199 transitions. [2023-11-23 21:09:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:09:49,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 123 [2023-11-23 21:09:49,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:49,136 INFO L225 Difference]: With dead ends: 129 [2023-11-23 21:09:49,136 INFO L226 Difference]: Without dead ends: 65 [2023-11-23 21:09:49,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:09:49,139 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 122 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:49,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 144 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:09:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-23 21:09:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-23 21:09:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:09:49,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 99 transitions. [2023-11-23 21:09:49,159 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 99 transitions. Word has length 123 [2023-11-23 21:09:49,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:49,161 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 99 transitions. [2023-11-23 21:09:49,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 21:09:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 99 transitions. [2023-11-23 21:09:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 21:09:49,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:49,165 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:49,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:49,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:49,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:49,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:49,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1062369210, now seen corresponding path program 1 times [2023-11-23 21:09:49,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:49,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515605399] [2023-11-23 21:09:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:49,386 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 21:09:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:49,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:49,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:09:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:50,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:09:50,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 21:09:51,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 21:09:52,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:52,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515605399] [2023-11-23 21:09:52,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515605399] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:52,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2078115332] [2023-11-23 21:09:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:52,900 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:52,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:09:52,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:09:52,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 21:09:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:54,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:09:55,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 21:09:56,278 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:09:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 21:09:57,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2078115332] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:09:57,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607126057] [2023-11-23 21:09:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:57,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:57,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:57,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:57,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:09:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:57,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:09:57,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-11-23 21:09:59,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 21:10:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607126057] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:00,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:10:00,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2023-11-23 21:10:00,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261979044] [2023-11-23 21:10:00,124 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:10:00,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:10:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:00,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:10:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:10:00,132 INFO L87 Difference]: Start difference. First operand 65 states and 99 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 21:10:03,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:05,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:07,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:08,103 INFO L93 Difference]: Finished difference Result 135 states and 202 transitions. [2023-11-23 21:10:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:10:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 124 [2023-11-23 21:10:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:08,116 INFO L225 Difference]: With dead ends: 135 [2023-11-23 21:10:08,116 INFO L226 Difference]: Without dead ends: 71 [2023-11-23 21:10:08,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 730 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:10:08,119 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 78 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:08,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 164 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 120 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2023-11-23 21:10:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-23 21:10:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2023-11-23 21:10:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 21:10:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 101 transitions. [2023-11-23 21:10:08,140 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 101 transitions. Word has length 124 [2023-11-23 21:10:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:08,141 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 101 transitions. [2023-11-23 21:10:08,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 21:10:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2023-11-23 21:10:08,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 21:10:08,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:08,145 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:08,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:08,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:10:08,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:08,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:08,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:08,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:08,765 INFO L85 PathProgramCache]: Analyzing trace with hash -382310840, now seen corresponding path program 1 times [2023-11-23 21:10:08,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:08,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400825603] [2023-11-23 21:10:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:08,767 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 21:10:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:08,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 21:10:08,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/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 (7)] Waiting until timeout for monitored process [2023-11-23 21:10:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:09,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:10:09,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 285 proven. 78 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2023-11-23 21:10:15,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:19,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400825603] [2023-11-23 21:10:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400825603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [950185227] [2023-11-23 21:10:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:19,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:19,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:19,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:19,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a75453-2880-4b18-9daf-fac9465e17c4/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-23 21:10:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:22,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-23 21:10:22,458 INFO L285 TraceCheckSpWp]: Computing forward predicates...