./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 153eaa15e8e0a77251d6fe10f88c717893889a67505536b5976381908daebffc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:56,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:56,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:19:56,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:56,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:56,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:56,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:56,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:56,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:56,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:56,672 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:56,673 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:56,673 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:56,675 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:56,676 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:56,676 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:56,676 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:56,677 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:56,677 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:56,678 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:56,678 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:56,679 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:56,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:56,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:56,681 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:19:56,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:56,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:19:56,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:56,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:56,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:56,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:56,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:19:56,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:56,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:56,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:56,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:56,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:56,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:56,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:56,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:56,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:56,697 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:56,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:56,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:56,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:56,698 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:56,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:56,699 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153eaa15e8e0a77251d6fe10f88c717893889a67505536b5976381908daebffc [2023-11-23 21:19:57,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:57,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:57,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:57,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:57,086 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:57,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:00,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:20:00,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:20:00,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:00,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/f5644c840/d296fadcfc144d42acf000815b2de734/FLAG2070d602d [2023-11-23 21:20:00,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/f5644c840/d296fadcfc144d42acf000815b2de734 [2023-11-23 21:20:00,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:20:00,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:20:00,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:00,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:20:00,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:20:00,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a05ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00, skipping insertion in model container [2023-11-23 21:20:00,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:20:00,674 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i[919,932] [2023-11-23 21:20:00,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:00,769 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:20:00,781 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i[919,932] [2023-11-23 21:20:00,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:00,841 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:20:00,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00 WrapperNode [2023-11-23 21:20:00,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:00,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:00,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:20:00,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:20:00,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,926 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 265 [2023-11-23 21:20:00,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:00,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:20:00,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:20:00,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:20:00,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:00,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:01,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:20:01,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:20:01,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:20:01,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:20:01,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (1/1) ... [2023-11-23 21:20:01,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:20:01,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:20:01,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:20:01,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:20:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:20:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:20:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:20:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:20:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:20:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:20:01,301 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:20:01,304 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:20:01,829 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:20:02,278 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:20:02,278 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:20:02,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:02 BoogieIcfgContainer [2023-11-23 21:20:02,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:20:02,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:20:02,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:20:02,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:20:02,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:20:00" (1/3) ... [2023-11-23 21:20:02,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7dc3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:02, skipping insertion in model container [2023-11-23 21:20:02,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:00" (2/3) ... [2023-11-23 21:20:02,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7dc3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:02, skipping insertion in model container [2023-11-23 21:20:02,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:02" (3/3) ... [2023-11-23 21:20:02,296 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:02,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:20:02,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:20:02,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:20:02,399 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;@6d83ad51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:20:02,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:20:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:20:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 21:20:02,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:02,423 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:02,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:02,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:02,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1430943391, now seen corresponding path program 1 times [2023-11-23 21:20:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:20:02,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885598290] [2023-11-23 21:20:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:20:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:20:03,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:20:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:20:03,570 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:20:03,572 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:20:03,574 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:20:03,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:20:03,581 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:20:03,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:20:03,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:20:03 BoogieIcfgContainer [2023-11-23 21:20:03,727 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:20:03,729 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:20:03,729 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:20:03,730 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:20:03,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:02" (3/4) ... [2023-11-23 21:20:03,734 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:20:03,736 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:20:03,737 INFO L158 Benchmark]: Toolchain (without parser) took 3309.46ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 136.1MB in the beginning and 84.9MB in the end (delta: 51.2MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,738 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:20:03,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.46ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 123.7MB in the end (delta: 12.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.38ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 120.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,746 INFO L158 Benchmark]: Boogie Preprocessor took 89.44ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,746 INFO L158 Benchmark]: RCFGBuilder took 1262.94ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.2MB in the beginning and 160.4MB in the end (delta: -42.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,748 INFO L158 Benchmark]: TraceAbstraction took 1443.49ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 84.9MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2023-11-23 21:20:03,749 INFO L158 Benchmark]: Witness Printer took 6.97ms. Allocated memory is still 201.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:20:03,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.46ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 123.7MB in the end (delta: 12.2MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.38ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 120.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.44ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1262.94ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.2MB in the beginning and 160.4MB in the end (delta: -42.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1443.49ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 84.9MB in the end (delta: 74.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 6.97ms. Allocated memory is still 201.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 63, overapproximation of bitwiseOr at line 74, overapproximation of someBinaryArithmeticDOUBLEoperation at line 79. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 4; [L23] unsigned short int var_1_8 = 64; [L24] unsigned short int var_1_11 = 256; [L25] unsigned short int var_1_12 = 0; [L26] unsigned short int var_1_13 = 64; [L27] unsigned char var_1_14 = 1; [L28] unsigned char var_1_15 = 0; [L29] signed char var_1_16 = 50; [L30] signed char var_1_19 = -100; [L31] double var_1_20 = 100000000.8; [L32] double var_1_21 = 15.125; [L33] double var_1_22 = 99.22; [L34] signed long int var_1_23 = -16; [L35] unsigned char var_1_24 = 1; [L36] signed char var_1_25 = 10; [L37] signed char var_1_26 = 16; [L38] unsigned char var_1_27 = 0; [L39] double var_1_28 = 5.5; [L40] signed long int var_1_29 = 50; [L41] signed char var_1_31 = 4; [L42] unsigned short int var_1_33 = 16; [L43] unsigned char var_1_39 = 4; [L44] signed long int var_1_41 = -5; [L45] double var_1_42 = 49.6; [L46] signed long int var_1_45 = -2; [L47] unsigned long int var_1_47 = 16; [L48] unsigned long int var_1_50 = 1275815169; [L49] unsigned long int var_1_51 = 1483937619; [L50] signed short int last_1_var_1_1 = 4; [L51] unsigned char last_1_var_1_14 = 1; [L52] signed char last_1_var_1_16 = 50; [L53] signed long int last_1_var_1_23 = -16; [L54] unsigned char last_1_var_1_24 = 1; [L55] double last_1_var_1_28 = 5.5; [L189] isInitial = 1 [L190] FCALL initially() [L191] COND TRUE 1 [L192] CALL updateLastVariables() [L177] last_1_var_1_1 = var_1_1 [L178] last_1_var_1_14 = var_1_14 [L179] last_1_var_1_16 = var_1_16 [L180] last_1_var_1_23 = var_1_23 [L181] last_1_var_1_24 = var_1_24 [L182] last_1_var_1_28 = var_1_28 [L192] RET updateLastVariables() [L193] CALL updateVariables() [L141] var_1_11 = __VERIFIER_nondet_ushort() [L142] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_12=0, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_12=0, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L143] CALL assume_abort_if_not(var_1_11 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=0, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_11 <= 32767) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=0, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L144] var_1_12 = __VERIFIER_nondet_ushort() [L145] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L146] CALL assume_abort_if_not(var_1_12 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_12 <= 32767) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=64, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L147] var_1_13 = __VERIFIER_nondet_ushort() [L148] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L149] CALL assume_abort_if_not(var_1_13 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_13 <= 65534) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=0, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L150] var_1_15 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L152] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-100, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L153] var_1_19 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_19 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_19 >= -127) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L155] CALL assume_abort_if_not(var_1_19 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_19 <= 126) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_21=121/8, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L156] var_1_21 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_22=4961/50, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L158] var_1_22 = __VERIFIER_nondet_double() [L159] CALL assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=10, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L160] var_1_25 = __VERIFIER_nondet_char() [L161] CALL assume_abort_if_not(var_1_25 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_25 >= -1) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L162] CALL assume_abort_if_not(var_1_25 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_25 <= 127) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=16, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L163] var_1_26 = __VERIFIER_nondet_char() [L164] CALL assume_abort_if_not(var_1_26 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_26 >= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L165] CALL assume_abort_if_not(var_1_26 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_26 <= 127) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L166] var_1_27 = __VERIFIER_nondet_uchar() [L167] CALL assume_abort_if_not(var_1_27 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_27 >= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L168] CALL assume_abort_if_not(var_1_27 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_27 <= 0) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1275815169, var_1_51=1483937619, var_1_8=64] [L169] var_1_50 = __VERIFIER_nondet_ulong() [L170] CALL assume_abort_if_not(var_1_50 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_50 >= 1073741823) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1483937619, var_1_8=64] [L171] CALL assume_abort_if_not(var_1_50 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1483937619, var_1_8=64] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_50 <= 2147483647) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1483937619, var_1_8=64] [L172] var_1_51 = __VERIFIER_nondet_ulong() [L173] CALL assume_abort_if_not(var_1_51 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_51 >= 1073741824) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] [L174] CALL assume_abort_if_not(var_1_51 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_51 <= 2147483647) VAL [isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=50, var_1_19=-126, var_1_1=4, var_1_20=500000004/5, var_1_23=-16, var_1_24=1, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=11/2, var_1_29=50, var_1_31=4, var_1_33=16, var_1_39=4, var_1_41=-5, var_1_42=248/5, var_1_45=-2, var_1_47=16, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] [L193] RET updateVariables() [L194] CALL step() [L59] signed long int stepLocal_3 = last_1_var_1_23; [L60] unsigned char stepLocal_2 = ! (last_1_var_1_14 || last_1_var_1_14); [L61] COND FALSE !(last_1_var_1_23 < stepLocal_3) [L72] var_1_16 = 100 [L74] EXPR ((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16 [L74] COND TRUE (((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16) >= last_1_var_1_23 [L75] var_1_23 = (5 - var_1_12) [L79] var_1_20 = (var_1_21 - (var_1_22 + 1.5)) [L80] var_1_28 = var_1_21 [L81] unsigned char stepLocal_0 = var_1_23 > 4; [L82] COND TRUE (var_1_23 <= var_1_23) || stepLocal_0 [L83] var_1_1 = (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))) [L87] var_1_24 = ((var_1_1 <= (var_1_25 - var_1_26)) && var_1_27) [L88] signed char stepLocal_1 = var_1_16; [L89] EXPR var_1_16 ^ var_1_16 [L89] COND TRUE stepLocal_1 > (var_1_23 + (var_1_16 ^ var_1_16)) [L90] var_1_14 = (var_1_24 || var_1_15) [L92] COND TRUE \read(var_1_14) [L93] COND FALSE !(\read(var_1_24)) [L97] var_1_29 = var_1_25 [L98] var_1_31 = var_1_19 [L99] COND FALSE !(\read(var_1_24)) [L104] COND FALSE !(((((var_1_28) < (var_1_21)) ? (var_1_28) : (var_1_21))) < var_1_28) [L108] var_1_39 = var_1_26 [L109] COND FALSE !(var_1_12 != var_1_1) [L114] COND FALSE !(1000000.4f != var_1_21) [L119] COND FALSE !(var_1_24 && var_1_14) [L122] var_1_45 = ((var_1_19 + var_1_12) + var_1_26) [L124] COND TRUE var_1_22 < var_1_22 [L125] EXPR var_1_13 | var_1_1 [L125] COND TRUE (var_1_13 | var_1_1) > var_1_11 [L126] var_1_47 = ((((var_1_26) > (var_1_11)) ? (var_1_26) : (var_1_11))) [L194] RET step() [L195] CALL, EXPR property() [L185] EXPR ((((var_1_23 <= var_1_23) || (var_1_23 > 4)) ? (var_1_1 == ((signed short int) (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))))) : (var_1_1 == ((signed short int) var_1_16))) && (var_1_14 ? (var_1_24 ? (var_1_8 == ((unsigned short int) (((((var_1_11 + var_1_12)) > (var_1_13)) ? ((var_1_11 + var_1_12)) : (var_1_13))))) : 1) : 1)) && ((var_1_16 > (var_1_23 + (var_1_16 ^ var_1_16))) ? (var_1_14 == ((unsigned char) (var_1_24 || var_1_15))) : 1) [L185] EXPR var_1_16 ^ var_1_16 [L185] EXPR ((((var_1_23 <= var_1_23) || (var_1_23 > 4)) ? (var_1_1 == ((signed short int) (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))))) : (var_1_1 == ((signed short int) var_1_16))) && (var_1_14 ? (var_1_24 ? (var_1_8 == ((unsigned short int) (((((var_1_11 + var_1_12)) > (var_1_13)) ? ((var_1_11 + var_1_12)) : (var_1_13))))) : 1) : 1)) && ((var_1_16 > (var_1_23 + (var_1_16 ^ var_1_16))) ? (var_1_14 == ((unsigned char) (var_1_24 || var_1_15))) : 1) [L185] EXPR (((((((var_1_23 <= var_1_23) || (var_1_23 > 4)) ? (var_1_1 == ((signed short int) (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))))) : (var_1_1 == ((signed short int) var_1_16))) && (var_1_14 ? (var_1_24 ? (var_1_8 == ((unsigned short int) (((((var_1_11 + var_1_12)) > (var_1_13)) ? ((var_1_11 + var_1_12)) : (var_1_13))))) : 1) : 1)) && ((var_1_16 > (var_1_23 + (var_1_16 ^ var_1_16))) ? (var_1_14 == ((unsigned char) (var_1_24 || var_1_15))) : 1)) && ((last_1_var_1_23 < last_1_var_1_23) ? (((! (last_1_var_1_14 || last_1_var_1_14)) && last_1_var_1_24) ? ((((((2.75f) > (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f))))) ? (2.75f) : (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f)))))) != last_1_var_1_28) ? (var_1_16 == ((signed char) 10)) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) 100)))) && (var_1_20 == ((double) (var_1_21 - (var_1_22 + 1.5))))) && (((((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16) >= last_1_var_1_23) ? (var_1_23 == ((signed long int) (5 - var_1_12))) : (var_1_23 == ((signed long int) ((((var_1_11) > (last_1_var_1_1)) ? (var_1_11) : (last_1_var_1_1)))))) [L185] EXPR ((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16 [L185] EXPR (((((((var_1_23 <= var_1_23) || (var_1_23 > 4)) ? (var_1_1 == ((signed short int) (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))))) : (var_1_1 == ((signed short int) var_1_16))) && (var_1_14 ? (var_1_24 ? (var_1_8 == ((unsigned short int) (((((var_1_11 + var_1_12)) > (var_1_13)) ? ((var_1_11 + var_1_12)) : (var_1_13))))) : 1) : 1)) && ((var_1_16 > (var_1_23 + (var_1_16 ^ var_1_16))) ? (var_1_14 == ((unsigned char) (var_1_24 || var_1_15))) : 1)) && ((last_1_var_1_23 < last_1_var_1_23) ? (((! (last_1_var_1_14 || last_1_var_1_14)) && last_1_var_1_24) ? ((((((2.75f) > (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f))))) ? (2.75f) : (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f)))))) != last_1_var_1_28) ? (var_1_16 == ((signed char) 10)) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) 100)))) && (var_1_20 == ((double) (var_1_21 - (var_1_22 + 1.5))))) && (((((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16) >= last_1_var_1_23) ? (var_1_23 == ((signed long int) (5 - var_1_12))) : (var_1_23 == ((signed long int) ((((var_1_11) > (last_1_var_1_1)) ? (var_1_11) : (last_1_var_1_1)))))) [L185-L186] return (((((((((var_1_23 <= var_1_23) || (var_1_23 > 4)) ? (var_1_1 == ((signed short int) (((((var_1_16 + (var_1_16 + var_1_16))) > (-100)) ? ((var_1_16 + (var_1_16 + var_1_16))) : (-100))))) : (var_1_1 == ((signed short int) var_1_16))) && (var_1_14 ? (var_1_24 ? (var_1_8 == ((unsigned short int) (((((var_1_11 + var_1_12)) > (var_1_13)) ? ((var_1_11 + var_1_12)) : (var_1_13))))) : 1) : 1)) && ((var_1_16 > (var_1_23 + (var_1_16 ^ var_1_16))) ? (var_1_14 == ((unsigned char) (var_1_24 || var_1_15))) : 1)) && ((last_1_var_1_23 < last_1_var_1_23) ? (((! (last_1_var_1_14 || last_1_var_1_14)) && last_1_var_1_24) ? ((((((2.75f) > (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f))))) ? (2.75f) : (((((last_1_var_1_28) < (999999.95f)) ? (last_1_var_1_28) : (999999.95f)))))) != last_1_var_1_28) ? (var_1_16 == ((signed char) 10)) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) var_1_19))) : (var_1_16 == ((signed char) 100)))) && (var_1_20 == ((double) (var_1_21 - (var_1_22 + 1.5))))) && (((((((last_1_var_1_1) > (last_1_var_1_16)) ? (last_1_var_1_1) : (last_1_var_1_16))) | last_1_var_1_16) >= last_1_var_1_23) ? (var_1_23 == ((signed long int) (5 - var_1_12))) : (var_1_23 == ((signed long int) ((((var_1_11) > (last_1_var_1_1)) ? (var_1_11) : (last_1_var_1_1))))))) && (var_1_24 == ((unsigned char) ((var_1_1 <= (var_1_25 - var_1_26)) && var_1_27)))) && (var_1_28 == ((double) var_1_21)) ; [L195] RET, EXPR property() [L195] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_19=-126, var_1_1=300, var_1_21=248/5, var_1_22=248/5, var_1_23=-295, var_1_24=0, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=248/5, var_1_29=0, var_1_31=-126, var_1_33=16, var_1_39=127, var_1_41=-5, var_1_42=248/5, var_1_45=301, var_1_47=127, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=1, last_1_var_1_16=50, last_1_var_1_1=4, last_1_var_1_23=-16, last_1_var_1_24=1, last_1_var_1_28=11/2, var_1_11=127, var_1_12=300, var_1_13=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_19=-126, var_1_1=300, var_1_21=248/5, var_1_22=248/5, var_1_23=-295, var_1_24=0, var_1_25=0, var_1_26=127, var_1_27=0, var_1_28=248/5, var_1_29=0, var_1_31=-126, var_1_33=16, var_1_39=127, var_1_41=-5, var_1_42=248/5, var_1_45=301, var_1_47=127, var_1_50=1073741823, var_1_51=1073741824, var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 22, 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=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 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 21:20:03,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 153eaa15e8e0a77251d6fe10f88c717893889a67505536b5976381908daebffc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:20:06,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:20:06,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:20:06,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:20:06,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:20:06,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:20:06,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:20:06,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:20:06,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:20:06,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:20:06,828 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:20:06,828 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:20:06,829 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:20:06,831 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:20:06,831 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:20:06,832 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:20:06,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:20:06,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:20:06,834 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:20:06,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:20:06,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:20:06,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:20:06,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:20:06,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:20:06,838 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:20:06,838 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:20:06,839 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:20:06,839 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:20:06,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:20:06,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:20:06,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:20:06,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:20:06,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:20:06,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:20:06,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:20:06,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:20:06,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:20:06,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:20:06,844 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:20:06,845 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:20:06,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:20:06,846 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:20:06,846 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:20:06,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:20:06,847 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153eaa15e8e0a77251d6fe10f88c717893889a67505536b5976381908daebffc [2023-11-23 21:20:07,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:20:07,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:20:07,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:20:07,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:20:07,313 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:20:07,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:10,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:20:11,053 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:20:11,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:11,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/bfc93860c/a7177e1d75ab497899f612466da745c7/FLAG89a2195c1 [2023-11-23 21:20:11,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/data/bfc93860c/a7177e1d75ab497899f612466da745c7 [2023-11-23 21:20:11,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:20:11,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:20:11,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:11,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:20:11,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:20:11,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a66823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11, skipping insertion in model container [2023-11-23 21:20:11,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:20:11,347 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i[919,932] [2023-11-23 21:20:11,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:11,429 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:20:11,443 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_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i[919,932] [2023-11-23 21:20:11,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:20:11,522 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:20:11,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11 WrapperNode [2023-11-23 21:20:11,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:20:11,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:11,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:20:11,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:20:11,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,599 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 182 [2023-11-23 21:20:11,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:20:11,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:20:11,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:20:11,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:20:11,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:20:11,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:20:11,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:20:11,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:20:11,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (1/1) ... [2023-11-23 21:20:11,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:20:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:20:11,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:20:11,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:20:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:20:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:20:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:20:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:20:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:20:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:20:11,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:20:11,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:20:14,539 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:20:14,589 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:20:14,590 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:20:14,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:14 BoogieIcfgContainer [2023-11-23 21:20:14,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:20:14,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:20:14,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:20:14,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:20:14,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:20:11" (1/3) ... [2023-11-23 21:20:14,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bb395f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:14, skipping insertion in model container [2023-11-23 21:20:14,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:20:11" (2/3) ... [2023-11-23 21:20:14,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bb395f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:14, skipping insertion in model container [2023-11-23 21:20:14,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:14" (3/3) ... [2023-11-23 21:20:14,604 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-65.i [2023-11-23 21:20:14,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:20:14,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:20:14,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:20:14,692 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;@614eaf56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:20:14,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:20:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:20:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 21:20:14,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:14,712 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:14,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:14,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1610545069, now seen corresponding path program 1 times [2023-11-23 21:20:14,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:14,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584786516] [2023-11-23 21:20:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:14,732 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 21:20:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:14,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:14,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:15,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:20:15,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-23 21:20:15,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:20:15,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:20:15,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584786516] [2023-11-23 21:20:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584786516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:15,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:20:15,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:20:15,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060511429] [2023-11-23 21:20:15,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:15,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:20:15,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:20:15,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:20:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:20:15,264 INFO L87 Difference]: Start difference. First operand has 71 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:20:16,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:20:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:16,378 INFO L93 Difference]: Finished difference Result 136 states and 244 transitions. [2023-11-23 21:20:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:20:16,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 142 [2023-11-23 21:20:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:16,401 INFO L225 Difference]: With dead ends: 136 [2023-11-23 21:20:16,401 INFO L226 Difference]: Without dead ends: 66 [2023-11-23 21:20:16,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 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 21:20:16,409 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:16,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:20:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-23 21:20:16,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-23 21:20:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-23 21:20:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 102 transitions. [2023-11-23 21:20:16,461 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 102 transitions. Word has length 142 [2023-11-23 21:20:16,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:16,462 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 102 transitions. [2023-11-23 21:20:16,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:20:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 102 transitions. [2023-11-23 21:20:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 21:20:16,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:16,470 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:16,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:16,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:16,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:16,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:16,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1864789077, now seen corresponding path program 1 times [2023-11-23 21:20:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:16,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566695437] [2023-11-23 21:20:16,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:16,686 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 21:20:16,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:16,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:16,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:17,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:20:17,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 393 proven. 45 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-23 21:20:17,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:20:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-23 21:20:18,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:20:18,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566695437] [2023-11-23 21:20:18,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566695437] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:20:18,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [42657731] [2023-11-23 21:20:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:18,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:20:18,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:20:18,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:20:18,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:20:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:18,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:20:18,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:20:18,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:20:18,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [42657731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:18,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:20:18,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 10 [2023-11-23 21:20:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774354939] [2023-11-23 21:20:18,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:18,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:20:18,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:20:18,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:20:18,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:20:18,929 INFO L87 Difference]: Start difference. First operand 66 states and 102 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:20,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:20,291 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2023-11-23 21:20:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:20:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 142 [2023-11-23 21:20:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:20,297 INFO L225 Difference]: With dead ends: 195 [2023-11-23 21:20:20,297 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 21:20:20,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 414 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:20:20,300 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 89 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:20,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 264 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:20:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 21:20:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-11-23 21:20:20,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 81 states have internal predecessors, (110), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-23 21:20:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 198 transitions. [2023-11-23 21:20:20,350 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 198 transitions. Word has length 142 [2023-11-23 21:20:20,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:20,355 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 198 transitions. [2023-11-23 21:20:20,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 198 transitions. [2023-11-23 21:20:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 21:20:20,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:20,361 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:20,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:20,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:20,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:20,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:20,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1866636119, now seen corresponding path program 1 times [2023-11-23 21:20:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151780576] [2023-11-23 21:20:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:20,765 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 21:20:20,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:20,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:20,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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)] Waiting until timeout for monitored process [2023-11-23 21:20:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:21,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:20:21,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 393 proven. 45 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-23 21:20:21,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:20:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-23 21:20:22,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:20:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151780576] [2023-11-23 21:20:22,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151780576] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:20:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1586557185] [2023-11-23 21:20:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:22,156 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:20:22,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:20:22,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:20:22,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 21:20:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:23,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:20:23,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 393 proven. 45 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-23 21:20:23,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:20:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-23 21:20:24,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1586557185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:20:24,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075893063] [2023-11-23 21:20:24,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:24,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:20:24,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:20:24,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:20:24,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:20:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:24,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:20:24,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 410 proven. 84 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2023-11-23 21:20:25,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:20:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-23 21:20:25,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075893063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:20:25,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:20:25,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9, 6] total 12 [2023-11-23 21:20:25,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080389454] [2023-11-23 21:20:25,601 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:20:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:20:25,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:20:25,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:20:25,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:20:25,610 INFO L87 Difference]: Start difference. First operand 128 states and 198 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-11-23 21:20:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:27,629 INFO L93 Difference]: Finished difference Result 215 states and 325 transitions. [2023-11-23 21:20:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:20:27,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 142 [2023-11-23 21:20:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:27,637 INFO L225 Difference]: With dead ends: 215 [2023-11-23 21:20:27,637 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 21:20:27,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 835 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2023-11-23 21:20:27,645 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 148 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:27,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 236 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 21:20:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 21:20:27,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2023-11-23 21:20:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 52 states have internal predecessors, (66), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-23 21:20:27,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2023-11-23 21:20:27,672 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 142 [2023-11-23 21:20:27,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:27,673 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2023-11-23 21:20:27,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 3 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-11-23 21:20:27,674 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2023-11-23 21:20:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:20:27,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:27,677 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:27,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:27,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:28,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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)] Ended with exit code 0 [2023-11-23 21:20:28,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:28,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:28,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:28,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1300644821, now seen corresponding path program 1 times [2023-11-23 21:20:28,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:28,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295126017] [2023-11-23 21:20:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:28,287 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 21:20:28,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:28,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:28,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 21:20:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:28,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:20:28,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:20:28,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:20:28,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:20:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295126017] [2023-11-23 21:20:28,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295126017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:28,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:20:28,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:20:28,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424262162] [2023-11-23 21:20:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:28,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:20:28,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:20:28,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:20:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:20:28,696 INFO L87 Difference]: Start difference. First operand 83 states and 122 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:29,440 INFO L93 Difference]: Finished difference Result 175 states and 248 transitions. [2023-11-23 21:20:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:20:29,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2023-11-23 21:20:29,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:29,443 INFO L225 Difference]: With dead ends: 175 [2023-11-23 21:20:29,443 INFO L226 Difference]: Without dead ends: 102 [2023-11-23 21:20:29,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:20:29,445 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:29,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 185 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:20:29,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-23 21:20:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2023-11-23 21:20:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:20:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 140 transitions. [2023-11-23 21:20:29,478 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 140 transitions. Word has length 143 [2023-11-23 21:20:29,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:29,479 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 140 transitions. [2023-11-23 21:20:29,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 140 transitions. [2023-11-23 21:20:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:20:29,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:29,482 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:29,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:29,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:29,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:29,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1980703191, now seen corresponding path program 1 times [2023-11-23 21:20:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:29,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370538518] [2023-11-23 21:20:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:29,694 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 21:20:29,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:29,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 (9)] Waiting until timeout for monitored process [2023-11-23 21:20:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:29,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:20:29,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 327 proven. 12 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2023-11-23 21:20:30,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:20:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 51 proven. 12 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2023-11-23 21:20:30,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:20:30,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370538518] [2023-11-23 21:20:30,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370538518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:20:30,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1161727313] [2023-11-23 21:20:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:30,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:20:30,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:20:30,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:20:30,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-23 21:20:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:31,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:20:31,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:20:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-23 21:20:31,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:20:31,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1161727313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:31,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:20:31,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 8 [2023-11-23 21:20:31,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563360959] [2023-11-23 21:20:31,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:31,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:20:31,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:20:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:20:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:20:31,148 INFO L87 Difference]: Start difference. First operand 101 states and 140 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:31,978 INFO L93 Difference]: Finished difference Result 250 states and 348 transitions. [2023-11-23 21:20:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:20:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2023-11-23 21:20:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:31,983 INFO L225 Difference]: With dead ends: 250 [2023-11-23 21:20:31,983 INFO L226 Difference]: Without dead ends: 173 [2023-11-23 21:20:31,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 419 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:20:31,985 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 84 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:31,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 253 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:20:31,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-23 21:20:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2023-11-23 21:20:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.1938775510204083) internal successors, (117), 100 states have internal predecessors, (117), 54 states have call successors, (54), 10 states have call predecessors, (54), 10 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 21:20:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 225 transitions. [2023-11-23 21:20:32,014 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 225 transitions. Word has length 143 [2023-11-23 21:20:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:32,015 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 225 transitions. [2023-11-23 21:20:32,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-23 21:20:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 225 transitions. [2023-11-23 21:20:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:20:32,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:32,019 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:32,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:32,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:20:32,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:20:32,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:20:32,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1982550233, now seen corresponding path program 1 times [2023-11-23 21:20:32,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:20:32,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053511146] [2023-11-23 21:20:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:32,430 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 21:20:32,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:20:32,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 21:20:32,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7df7fc7-eb83-4838-830f-2fb84e5a61e7/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 (11)] Waiting until timeout for monitored process [2023-11-23 21:20:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:32,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 21:20:32,782 INFO L285 TraceCheckSpWp]: Computing forward predicates...