./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71c685f028ed91d7b5a9714e56e64b437d5e492a38be11760a5871f4cde664d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:29:55,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:55,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:55,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:55,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:55,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:55,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:55,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:55,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:55,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:55,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:55,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:55,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:55,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:55,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:55,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:55,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:55,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:55,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:55,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:55,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:55,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:55,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:55,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:55,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:55,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:55,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:55,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:55,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:55,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:55,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:55,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:55,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:55,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:55,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:55,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:55,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:55,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:55,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:55,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:55,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:55,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:29:55,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:55,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:55,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:55,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:55,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:29:55,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:29:55,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:55,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:55,332 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:55,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:55,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:29:55,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:55,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:29:55,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:29:55,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:29:55,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:55,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:55,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:29:55,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:55,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:55,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:29:55,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:55,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:55,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:29:55,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:29:55,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:29:55,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:29:55,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:29:55,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:29:55,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:29:55,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71c685f028ed91d7b5a9714e56e64b437d5e492a38be11760a5871f4cde664d2 [2022-11-21 17:29:55,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:55,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:55,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:55,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:55,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:55,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2022-11-21 17:29:58,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:59,157 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:59,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2022-11-21 17:29:59,168 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/d120af4bc/db37b30c06f14d1f9729d6a9d0ae0c5b/FLAG9d3c6de2c [2022-11-21 17:29:59,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/d120af4bc/db37b30c06f14d1f9729d6a9d0ae0c5b [2022-11-21 17:29:59,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:59,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:59,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:59,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:59,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:59,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:29:59,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3ee6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59, skipping insertion in model container [2022-11-21 17:29:59,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:29:59,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:59,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:59,423 WARN L237 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_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1107,1120] [2022-11-21 17:29:59,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:59,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:59,706 WARN L237 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_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1107,1120] [2022-11-21 17:29:59,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:59,891 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:59,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59 WrapperNode [2022-11-21 17:29:59,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:59,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:59,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:59,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:59,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:29:59,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,027 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1064 [2022-11-21 17:30:00,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:30:00,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:30:00,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:30:00,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:30:00,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:30:00,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:30:00,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:30:00,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:30:00,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (1/1) ... [2022-11-21 17:30:00,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:30:00,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:30:00,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:30:00,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:30:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:30:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:30:00,659 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:30:00,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:30:08,103 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:30:08,110 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:30:08,110 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:30:08,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:08 BoogieIcfgContainer [2022-11-21 17:30:08,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:30:08,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:30:08,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:30:08,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:30:08,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:59" (1/3) ... [2022-11-21 17:30:08,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7773156e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:08, skipping insertion in model container [2022-11-21 17:30:08,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:59" (2/3) ... [2022-11-21 17:30:08,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7773156e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:08, skipping insertion in model container [2022-11-21 17:30:08,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:08" (3/3) ... [2022-11-21 17:30:08,126 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal1.c [2022-11-21 17:30:08,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:30:08,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:30:08,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:30:08,217 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6b24e411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:30:08,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:30:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:30:08,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:08,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:30:08,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:30:08,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:30:08,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030425175] [2022-11-21 17:30:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:08,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:30:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:30:08,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:30:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:30:08,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:30:08,689 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:30:08,690 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:30:08,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:30:08,697 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 17:30:08,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:30:08,747 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 17:30:08,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:30:08 BoogieIcfgContainer [2022-11-21 17:30:08,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:30:08,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:30:08,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:30:08,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:30:08,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:08" (3/4) ... [2022-11-21 17:30:08,780 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:30:08,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:30:08,782 INFO L158 Benchmark]: Toolchain (without parser) took 9591.77ms. Allocated memory was 211.8MB in the beginning and 471.9MB in the end (delta: 260.0MB). Free memory was 163.3MB in the beginning and 392.4MB in the end (delta: -229.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,783 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 91.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:30:08,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.93ms. Allocated memory is still 211.8MB. Free memory was 162.9MB in the beginning and 129.8MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.82ms. Allocated memory is still 211.8MB. Free memory was 129.8MB in the beginning and 121.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,785 INFO L158 Benchmark]: Boogie Preprocessor took 118.81ms. Allocated memory is still 211.8MB. Free memory was 121.0MB in the beginning and 115.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,785 INFO L158 Benchmark]: RCFGBuilder took 7964.96ms. Allocated memory was 211.8MB in the beginning and 471.9MB in the end (delta: 260.0MB). Free memory was 115.9MB in the beginning and 424.9MB in the end (delta: -309.0MB). Peak memory consumption was 238.2MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,786 INFO L158 Benchmark]: TraceAbstraction took 657.03ms. Allocated memory is still 471.9MB. Free memory was 424.9MB in the beginning and 392.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 17:30:08,786 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 471.9MB. Free memory is still 392.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:30:08,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 91.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.93ms. Allocated memory is still 211.8MB. Free memory was 162.9MB in the beginning and 129.8MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.82ms. Allocated memory is still 211.8MB. Free memory was 129.8MB in the beginning and 121.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.81ms. Allocated memory is still 211.8MB. Free memory was 121.0MB in the beginning and 115.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7964.96ms. Allocated memory was 211.8MB in the beginning and 471.9MB in the end (delta: 260.0MB). Free memory was 115.9MB in the beginning and 424.9MB in the end (delta: -309.0MB). Peak memory consumption was 238.2MB. Max. memory is 16.1GB. * TraceAbstraction took 657.03ms. Allocated memory is still 471.9MB. Free memory was 424.9MB in the beginning and 392.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 471.9MB. Free memory is still 392.4MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 244, overapproximation of bitwiseOr at line 260, overapproximation of bitwiseAnd at line 189. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L34] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 64); [L35] const SORT_14 msb_SORT_14 = (SORT_14)1 << (64 - 1); [L37] const SORT_1 var_56 = 0; [L38] const SORT_6 var_60 = 0; [L39] const SORT_1 var_73 = 1; [L40] const SORT_14 var_77 = 0; [L41] const SORT_10 var_98 = 0; [L43] SORT_1 input_2; [L44] SORT_1 input_3; [L45] SORT_1 input_4; [L46] SORT_1 input_5; [L47] SORT_6 input_7; [L48] SORT_6 input_8; [L49] SORT_1 input_9; [L50] SORT_10 input_11; [L51] SORT_1 input_12; [L52] SORT_1 input_13; [L53] SORT_14 input_15; [L54] SORT_10 input_16; [L55] SORT_1 input_17; [L56] SORT_6 input_18; [L57] SORT_1 input_19; [L58] SORT_10 input_20; [L59] SORT_10 input_21; [L60] SORT_6 input_22; [L61] SORT_6 input_23; [L62] SORT_1 input_24; [L63] SORT_14 input_25; [L64] SORT_10 input_26; [L65] SORT_1 input_27; [L66] SORT_6 input_28; [L67] SORT_6 input_29; [L68] SORT_6 input_30; [L69] SORT_6 input_31; [L70] SORT_10 input_32; [L71] SORT_10 input_33; [L72] SORT_10 input_34; [L73] SORT_10 input_35; [L74] SORT_10 input_36; [L75] SORT_10 input_37; [L76] SORT_10 input_38; [L77] SORT_10 input_39; [L78] SORT_1 input_40; [L79] SORT_1 input_41; [L80] SORT_1 input_42; [L81] SORT_1 input_43; [L82] SORT_1 input_44; [L83] SORT_1 input_45; [L84] SORT_14 input_46; [L85] SORT_14 input_47; [L86] SORT_14 input_48; [L87] SORT_14 input_49; [L88] SORT_6 input_50; [L89] SORT_6 input_51; [L90] SORT_1 input_52; [L91] SORT_1 input_53; [L92] SORT_1 input_54; [L93] SORT_1 input_55; [L95] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_6 state_61 = __VERIFIER_nondet_uint() & mask_SORT_6; [L97] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_6 state_66 = __VERIFIER_nondet_uint() & mask_SORT_6; [L99] SORT_14 state_78 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L100] SORT_14 state_81 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L101] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_10 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L105] SORT_10 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L106] SORT_1 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_123 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_10 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L109] SORT_10 state_138 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L110] SORT_6 state_148 = __VERIFIER_nondet_uint() & mask_SORT_6; [L111] SORT_6 state_156 = __VERIFIER_nondet_uint() & mask_SORT_6; [L112] SORT_14 state_170 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L113] SORT_14 state_173 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L114] SORT_1 state_176 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_10 state_179 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L116] SORT_1 state_184 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_10 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L119] SORT_1 state_212 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_10 state_217 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L121] SORT_1 state_223 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_10 state_238 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L123] SORT_6 state_249 = __VERIFIER_nondet_uint() & mask_SORT_6; [L124] SORT_6 state_282 = __VERIFIER_nondet_uint() & mask_SORT_6; [L126] SORT_1 init_58_arg_1 = var_56; [L127] state_57 = init_58_arg_1 [L128] SORT_6 init_62_arg_1 = var_60; [L129] state_61 = init_62_arg_1 [L130] SORT_1 init_64_arg_1 = var_56; [L131] state_63 = init_64_arg_1 [L132] SORT_6 init_67_arg_1 = var_60; [L133] state_66 = init_67_arg_1 [L134] SORT_14 init_79_arg_1 = var_77; [L135] state_78 = init_79_arg_1 [L136] SORT_14 init_82_arg_1 = var_77; [L137] state_81 = init_82_arg_1 [L138] SORT_1 init_85_arg_1 = var_56; [L139] state_84 = init_85_arg_1 [L140] SORT_1 init_91_arg_1 = var_56; [L141] state_90 = init_91_arg_1 [L142] SORT_1 init_94_arg_1 = var_56; [L143] state_93 = init_94_arg_1 [L144] SORT_10 init_100_arg_1 = var_98; [L145] state_99 = init_100_arg_1 [L146] SORT_10 init_103_arg_1 = var_98; [L147] state_102 = init_103_arg_1 [L148] SORT_1 init_117_arg_1 = var_56; [L149] state_116 = init_117_arg_1 [L150] SORT_1 init_124_arg_1 = var_56; [L151] state_123 = init_124_arg_1 [L152] SORT_10 init_136_arg_1 = var_98; [L153] state_135 = init_136_arg_1 [L154] SORT_10 init_139_arg_1 = var_98; [L155] state_138 = init_139_arg_1 [L156] SORT_6 init_149_arg_1 = var_60; [L157] state_148 = init_149_arg_1 [L158] SORT_6 init_157_arg_1 = var_60; [L159] state_156 = init_157_arg_1 [L160] SORT_14 init_171_arg_1 = var_77; [L161] state_170 = init_171_arg_1 [L162] SORT_14 init_174_arg_1 = var_77; [L163] state_173 = init_174_arg_1 [L164] SORT_1 init_177_arg_1 = var_56; [L165] state_176 = init_177_arg_1 [L166] SORT_10 init_180_arg_1 = var_98; [L167] state_179 = init_180_arg_1 [L168] SORT_1 init_185_arg_1 = var_56; [L169] state_184 = init_185_arg_1 [L170] SORT_1 init_192_arg_1 = var_56; [L171] state_191 = init_192_arg_1 [L172] SORT_10 init_197_arg_1 = var_98; [L173] state_196 = init_197_arg_1 [L174] SORT_1 init_213_arg_1 = var_56; [L175] state_212 = init_213_arg_1 [L176] SORT_10 init_218_arg_1 = var_98; [L177] state_217 = init_218_arg_1 [L178] SORT_1 init_224_arg_1 = var_56; [L179] state_223 = init_224_arg_1 [L180] SORT_10 init_239_arg_1 = var_98; [L181] state_238 = init_239_arg_1 [L182] SORT_6 init_250_arg_1 = var_60; [L183] state_249 = init_250_arg_1 [L184] SORT_6 init_283_arg_1 = var_60; [L185] state_282 = init_283_arg_1 VAL [init_100_arg_1=0, init_103_arg_1=0, init_117_arg_1=0, init_124_arg_1=0, init_136_arg_1=0, init_139_arg_1=0, init_149_arg_1=0, init_157_arg_1=0, init_171_arg_1=0, init_174_arg_1=0, init_177_arg_1=0, init_180_arg_1=0, init_185_arg_1=0, init_192_arg_1=0, init_197_arg_1=0, init_213_arg_1=0, init_218_arg_1=0, init_224_arg_1=0, init_239_arg_1=0, init_250_arg_1=0, init_283_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_67_arg_1=0, init_79_arg_1=0, init_82_arg_1=0, init_85_arg_1=0, init_91_arg_1=0, init_94_arg_1=0, mask_SORT_1=1, mask_SORT_10=15, mask_SORT_14=18446744073709551615, mask_SORT_6=4294967295, msb_SORT_1=1, msb_SORT_10=8, msb_SORT_14=9223372036854775808, msb_SORT_6=2147483648, state_102=0, state_116=0, state_123=0, state_135=0, state_138=0, state_148=0, state_156=0, state_170=0, state_173=0, state_176=0, state_179=0, state_184=0, state_191=0, state_196=0, state_212=0, state_217=0, state_223=0, state_238=0, state_249=0, state_282=0, state_57=0, state_61=0, state_63=0, state_66=0, state_78=0, state_81=0, state_84=0, state_90=0, state_93=0, state_99=0, var_56=0, var_60=0, var_73=1, var_77=0, var_98=0] [L188] input_2 = __VERIFIER_nondet_uchar() [L189] input_2 = input_2 & mask_SORT_1 [L190] input_3 = __VERIFIER_nondet_uchar() [L191] input_4 = __VERIFIER_nondet_uchar() [L192] input_5 = __VERIFIER_nondet_uchar() [L193] input_7 = __VERIFIER_nondet_uint() [L194] input_8 = __VERIFIER_nondet_uint() [L195] input_9 = __VERIFIER_nondet_uchar() [L196] input_9 = input_9 & mask_SORT_1 [L197] input_11 = __VERIFIER_nondet_uchar() [L198] input_12 = __VERIFIER_nondet_uchar() [L199] input_13 = __VERIFIER_nondet_uchar() [L200] input_15 = __VERIFIER_nondet_ulong() [L201] input_16 = __VERIFIER_nondet_uchar() [L202] input_17 = __VERIFIER_nondet_uchar() [L203] input_18 = __VERIFIER_nondet_uint() [L204] input_19 = __VERIFIER_nondet_uchar() [L205] input_20 = __VERIFIER_nondet_uchar() [L206] input_21 = __VERIFIER_nondet_uchar() [L207] input_22 = __VERIFIER_nondet_uint() [L208] input_23 = __VERIFIER_nondet_uint() [L209] input_24 = __VERIFIER_nondet_uchar() [L210] input_25 = __VERIFIER_nondet_ulong() [L211] input_26 = __VERIFIER_nondet_uchar() [L212] input_27 = __VERIFIER_nondet_uchar() [L213] input_28 = __VERIFIER_nondet_uint() [L214] input_29 = __VERIFIER_nondet_uint() [L215] input_30 = __VERIFIER_nondet_uint() [L216] input_31 = __VERIFIER_nondet_uint() [L217] input_32 = __VERIFIER_nondet_uchar() [L218] input_33 = __VERIFIER_nondet_uchar() [L219] input_34 = __VERIFIER_nondet_uchar() [L220] input_35 = __VERIFIER_nondet_uchar() [L221] input_36 = __VERIFIER_nondet_uchar() [L222] input_37 = __VERIFIER_nondet_uchar() [L223] input_38 = __VERIFIER_nondet_uchar() [L224] input_39 = __VERIFIER_nondet_uchar() [L225] input_40 = __VERIFIER_nondet_uchar() [L226] input_41 = __VERIFIER_nondet_uchar() [L227] input_42 = __VERIFIER_nondet_uchar() [L228] input_43 = __VERIFIER_nondet_uchar() [L229] input_44 = __VERIFIER_nondet_uchar() [L230] input_45 = __VERIFIER_nondet_uchar() [L231] input_46 = __VERIFIER_nondet_ulong() [L232] input_47 = __VERIFIER_nondet_ulong() [L233] input_48 = __VERIFIER_nondet_ulong() [L234] input_49 = __VERIFIER_nondet_ulong() [L235] input_50 = __VERIFIER_nondet_uint() [L236] input_51 = __VERIFIER_nondet_uint() [L237] input_52 = __VERIFIER_nondet_uchar() [L238] input_53 = __VERIFIER_nondet_uchar() [L239] input_54 = __VERIFIER_nondet_uchar() [L240] input_55 = __VERIFIER_nondet_uchar() [L243] SORT_1 var_59_arg_0 = state_57; [L244] SORT_1 var_59 = ~var_59_arg_0; [L245] SORT_1 var_65_arg_0 = state_63; [L246] SORT_6 var_65_arg_1 = state_61; [L247] SORT_6 var_65_arg_2 = input_18; [L248] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L249] var_65 = var_65 & mask_SORT_6 [L250] SORT_1 var_68_arg_0 = state_63; [L251] SORT_6 var_68_arg_1 = state_66; [L252] SORT_6 var_68_arg_2 = input_18; [L253] SORT_6 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L254] var_68 = var_68 & mask_SORT_6 [L255] SORT_6 var_69_arg_0 = var_65; [L256] SORT_6 var_69_arg_1 = var_68; [L257] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L258] SORT_1 var_70_arg_0 = var_59; [L259] SORT_1 var_70_arg_1 = var_69; [L260] SORT_1 var_70 = var_70_arg_0 | var_70_arg_1; [L261] SORT_1 var_74_arg_0 = var_70; [L262] SORT_1 var_74 = ~var_74_arg_0; [L263] SORT_1 var_75_arg_0 = var_73; [L264] SORT_1 var_75_arg_1 = var_74; [L265] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L266] var_75 = var_75 & mask_SORT_1 [L267] SORT_1 bad_76_arg_0 = var_75; [L268] CALL __VERIFIER_assert(!(bad_76_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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 [2022-11-21 17:30:08,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71c685f028ed91d7b5a9714e56e64b437d5e492a38be11760a5871f4cde664d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:30:11,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:30:11,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:30:11,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:30:11,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:30:11,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:30:11,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:30:11,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:30:11,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:30:11,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:30:11,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:30:11,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:30:11,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:30:11,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:30:11,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:30:11,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:30:11,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:30:11,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:30:11,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:30:11,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:30:11,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:30:11,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:30:11,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:30:11,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:30:11,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:30:11,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:30:11,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:30:11,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:30:11,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:30:11,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:30:11,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:30:11,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:30:11,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:30:11,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:30:11,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:30:11,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:30:11,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:30:11,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:30:11,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:30:11,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:30:11,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:30:11,608 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 17:30:11,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:30:11,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:30:11,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:30:11,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:30:11,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:30:11,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:30:11,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:30:11,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:30:11,653 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:30:11,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:30:11,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:30:11,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:30:11,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:30:11,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:30:11,655 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:30:11,655 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:30:11,655 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:30:11,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:30:11,656 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:30:11,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:30:11,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:30:11,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:30:11,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:30:11,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:30:11,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:30:11,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:30:11,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:30:11,658 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:30:11,658 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:30:11,658 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:30:11,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:30:11,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:30:11,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:30:11,659 INFO L138 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_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71c685f028ed91d7b5a9714e56e64b437d5e492a38be11760a5871f4cde664d2 [2022-11-21 17:30:12,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:30:12,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:30:12,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:30:12,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:30:12,053 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:30:12,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2022-11-21 17:30:15,359 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:30:15,684 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:30:15,684 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2022-11-21 17:30:15,702 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/d5b42f425/ea3f270de22c46b897379484a1b61702/FLAG04d1bc52e [2022-11-21 17:30:15,722 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/data/d5b42f425/ea3f270de22c46b897379484a1b61702 [2022-11-21 17:30:15,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:30:15,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:30:15,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:30:15,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:30:15,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:30:15,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:30:15" (1/1) ... [2022-11-21 17:30:15,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc191ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:15, skipping insertion in model container [2022-11-21 17:30:15,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:30:15" (1/1) ... [2022-11-21 17:30:15,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:30:15,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:30:15,944 WARN L237 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_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1107,1120] [2022-11-21 17:30:16,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:30:16,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:30:16,239 WARN L237 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_5963ecbd-141f-4640-83f6-78d1efe10844/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1107,1120] [2022-11-21 17:30:16,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:30:16,356 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:30:16,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16 WrapperNode [2022-11-21 17:30:16,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:30:16,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:30:16,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:30:16,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:30:16,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,519 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1064 [2022-11-21 17:30:16,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:30:16,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:30:16,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:30:16,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:30:16,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:30:16,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:30:16,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:30:16,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:30:16,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (1/1) ... [2022-11-21 17:30:16,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:30:16,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:30:16,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:30:16,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:30:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:30:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:30:17,058 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:30:17,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:30:18,407 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:30:18,414 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:30:18,415 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:30:18,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:18 BoogieIcfgContainer [2022-11-21 17:30:18,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:30:18,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:30:18,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:30:18,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:30:18,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:30:15" (1/3) ... [2022-11-21 17:30:18,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a52a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:18, skipping insertion in model container [2022-11-21 17:30:18,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:16" (2/3) ... [2022-11-21 17:30:18,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a52a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:18, skipping insertion in model container [2022-11-21 17:30:18,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:18" (3/3) ... [2022-11-21 17:30:18,427 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal1.c [2022-11-21 17:30:18,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:30:18,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:30:18,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:30:18,528 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@260a2ea2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:30:18,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:30:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:18,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:30:18,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:18,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:30:18,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:30:18,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:30:18,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575463389] [2022-11-21 17:30:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:18,573 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 [2022-11-21 17:30:18,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:30:18,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:30:18,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:18,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 17:30:18,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:30:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:19,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:30:19,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:30:19,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575463389] [2022-11-21 17:30:19,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575463389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:30:19,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:30:19,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:30:19,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269043555] [2022-11-21 17:30:19,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:30:19,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:30:19,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:30:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:30:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:30:19,144 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:19,469 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 17:30:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:30:19,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-21 17:30:19,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:19,480 INFO L225 Difference]: With dead ends: 20 [2022-11-21 17:30:19,480 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 17:30:19,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:30:19,488 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:19,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:30:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 17:30:19,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 17:30:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:19,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 17:30:19,522 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 17:30:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:19,523 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 17:30:19,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 17:30:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:30:19,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:19,525 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:30:19,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:19,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:19,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 17:30:19,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:30:19,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319194124] [2022-11-21 17:30:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:19,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:30:19,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:30:19,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:30:19,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:20,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 17:30:20,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:30:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:20,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:30:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:21,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:30:21,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319194124] [2022-11-21 17:30:21,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319194124] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:30:21,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:30:21,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 17:30:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70753879] [2022-11-21 17:30:21,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:30:21,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:30:21,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:30:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:30:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:30:21,712 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:22,379 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 17:30:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:30:22,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 17:30:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:22,381 INFO L225 Difference]: With dead ends: 16 [2022-11-21 17:30:22,381 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 17:30:22,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:30:22,383 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:22,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:30:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 17:30:22,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 17:30:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 17:30:22,388 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 17:30:22,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:22,388 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 17:30:22,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:30:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 17:30:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:30:22,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:22,390 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 17:30:22,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:22,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:30:22,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 17:30:22,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:30:22,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125281261] [2022-11-21 17:30:22,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:30:22,594 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 [2022-11-21 17:30:22,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:30:22,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:30:22,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 17:30:23,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:30:23,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:30:23,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 187 conjunts are in the unsatisfiable core [2022-11-21 17:30:23,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:30:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:30:29,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:31:44,292 WARN L233 SmtUtils]: Spent 23.17s on a formula simplification. DAG size of input: 549 DAG size of output: 111 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 17:31:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:31:45,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:31:45,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125281261] [2022-11-21 17:31:45,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125281261] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:31:45,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:31:45,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-21 17:31:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482211917] [2022-11-21 17:31:45,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:31:45,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 17:31:45,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:31:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 17:31:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:31:45,575 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:31:46,949 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-21 17:31:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:31:46,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 17:31:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:31:46,951 INFO L225 Difference]: With dead ends: 19 [2022-11-21 17:31:46,951 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 17:31:46,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:31:46,953 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:31:46,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:31:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 17:31:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 17:31:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-21 17:31:46,959 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-21 17:31:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:46,959 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-21 17:31:46,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:31:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-21 17:31:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 17:31:46,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:46,961 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 17:31:47,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:31:47,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:31:47,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:31:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 17:31:47,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:31:47,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393151072] [2022-11-21 17:31:47,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:31:47,187 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 [2022-11-21 17:31:47,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:31:47,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:31:47,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5963ecbd-141f-4640-83f6-78d1efe10844/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:31:48,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 17:31:48,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:31:49,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 2529 conjuncts, 764 conjunts are in the unsatisfiable core [2022-11-21 17:31:49,116 INFO L286 TraceCheckSpWp]: Computing forward predicates...