./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD --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 32bit --witnessprinter.graph.data.programhash 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD --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 32bit --witnessprinter.graph.data.programhash 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:49:42,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:49:42,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:49:42,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:49:42,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:49:42,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:49:42,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:49:42,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:49:42,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:49:42,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:49:42,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:49:42,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:49:42,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:49:42,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:49:42,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:49:42,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:49:42,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:49:42,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:49:42,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:49:42,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:49:42,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:49:42,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:49:42,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:49:42,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:49:42,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:49:42,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:49:42,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:49:42,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:49:42,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:49:42,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:49:42,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:49:42,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:49:42,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:49:42,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:49:42,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:49:42,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:49:42,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:49:42,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:49:42,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:49:42,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:49:42,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:49:42,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:49:42,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:49:42,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:49:42,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:49:42,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:49:42,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:49:42,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:49:42,426 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:49:42,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:49:42,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:49:42,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:49:42,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:49:42,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:49:42,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:49:42,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:49:42,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:49:42,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:49:42,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:49:42,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:49:42,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:49:42,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:49:42,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:49:42,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:49:42,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:42,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:49:42,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:49:42,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:49:42,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:49:42,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:49:42,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:49:42,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:49:42,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:49:42,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:49:42,433 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_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 [2021-10-28 22:49:42,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:49:42,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:49:42,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:49:42,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:49:42,749 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:49:42,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-28 22:49:42,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/6f7e963e5/a5c0e2634da84468963b668b52c2b7a4/FLAG6d570f874 [2021-10-28 22:49:43,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:49:43,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-28 22:49:43,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/6f7e963e5/a5c0e2634da84468963b668b52c2b7a4/FLAG6d570f874 [2021-10-28 22:49:43,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/6f7e963e5/a5c0e2634da84468963b668b52c2b7a4 [2021-10-28 22:49:43,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:49:43,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:49:43,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:43,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:49:43,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:49:43,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:43" (1/1) ... [2021-10-28 22:49:43,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7920f41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:43, skipping insertion in model container [2021-10-28 22:49:43,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:43" (1/1) ... [2021-10-28 22:49:43,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:49:43,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:49:43,981 WARN L228 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_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-28 22:49:44,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:44,054 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:49:44,067 WARN L228 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_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-28 22:49:44,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:44,128 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:49:44,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44 WrapperNode [2021-10-28 22:49:44,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:44,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:44,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:49:44,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:49:44,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:44,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:49:44,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:49:44,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:49:44,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:49:44,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:49:44,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:49:44,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:49:44,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (1/1) ... [2021-10-28 22:49:44,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:44,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:49:44,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:49:44,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:49:44,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:49:44,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:49:44,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:49:44,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:49:44,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:49:44,948 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-28 22:49:44,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:44 BoogieIcfgContainer [2021-10-28 22:49:44,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:49:44,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:49:44,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:49:44,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:49:44,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:49:43" (1/3) ... [2021-10-28 22:49:44,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dd33ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:44, skipping insertion in model container [2021-10-28 22:49:44,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:44" (2/3) ... [2021-10-28 22:49:44,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dd33ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:44, skipping insertion in model container [2021-10-28 22:49:44,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:44" (3/3) ... [2021-10-28 22:49:44,966 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-10-28 22:49:44,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:49:44,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 22:49:45,038 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:49:45,046 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:49:45,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 22:49:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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) [2021-10-28 22:49:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 22:49:45,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:45,078 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:45,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2021-10-28 22:49:45,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:45,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546292168] [2021-10-28 22:49:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:45,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:45,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:45,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:45,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546292168] [2021-10-28 22:49:45,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546292168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:45,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:45,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:49:45,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022945597] [2021-10-28 22:49:45,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:49:45,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:45,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:49:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:45,476 INFO L87 Difference]: Start difference. First operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-28 22:49:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:46,076 INFO L93 Difference]: Finished difference Result 458 states and 692 transitions. [2021-10-28 22:49:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:49:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2021-10-28 22:49:46,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:46,107 INFO L225 Difference]: With dead ends: 458 [2021-10-28 22:49:46,107 INFO L226 Difference]: Without dead ends: 348 [2021-10-28 22:49:46,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:49:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-10-28 22:49:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 142. [2021-10-28 22:49:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 136 states have (on average 1.5147058823529411) internal successors, (206), 141 states have internal predecessors, (206), 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) [2021-10-28 22:49:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 206 transitions. [2021-10-28 22:49:46,217 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 206 transitions. Word has length 18 [2021-10-28 22:49:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:46,219 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 206 transitions. [2021-10-28 22:49:46,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-28 22:49:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 206 transitions. [2021-10-28 22:49:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 22:49:46,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:46,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:46,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:49:46,223 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1626703378, now seen corresponding path program 1 times [2021-10-28 22:49:46,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:46,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32651938] [2021-10-28 22:49:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:46,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:46,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:46,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32651938] [2021-10-28 22:49:46,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32651938] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:46,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:46,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:49:46,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488974260] [2021-10-28 22:49:46,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:49:46,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:49:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:49:46,446 INFO L87 Difference]: Start difference. First operand 142 states and 206 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-10-28 22:49:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:46,633 INFO L93 Difference]: Finished difference Result 299 states and 427 transitions. [2021-10-28 22:49:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:49:46,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-10-28 22:49:46,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:46,636 INFO L225 Difference]: With dead ends: 299 [2021-10-28 22:49:46,636 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 22:49:46,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:49:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 22:49:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 202. [2021-10-28 22:49:46,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 201 states have internal predecessors, (289), 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) [2021-10-28 22:49:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 289 transitions. [2021-10-28 22:49:46,660 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 289 transitions. Word has length 18 [2021-10-28 22:49:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:46,661 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 289 transitions. [2021-10-28 22:49:46,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-10-28 22:49:46,662 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 289 transitions. [2021-10-28 22:49:46,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 22:49:46,664 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:46,668 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:46,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:49:46,669 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:46,671 INFO L85 PathProgramCache]: Analyzing trace with hash 442130173, now seen corresponding path program 1 times [2021-10-28 22:49:46,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:46,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770428742] [2021-10-28 22:49:46,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:46,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:46,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:46,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770428742] [2021-10-28 22:49:46,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770428742] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:46,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:46,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:49:46,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458870340] [2021-10-28 22:49:46,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:49:46,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:46,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:49:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:46,948 INFO L87 Difference]: Start difference. First operand 202 states and 289 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-10-28 22:49:47,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:47,254 INFO L93 Difference]: Finished difference Result 315 states and 421 transitions. [2021-10-28 22:49:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 22:49:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 22 [2021-10-28 22:49:47,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:47,263 INFO L225 Difference]: With dead ends: 315 [2021-10-28 22:49:47,263 INFO L226 Difference]: Without dead ends: 267 [2021-10-28 22:49:47,264 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-28 22:49:47,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-10-28 22:49:47,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 191. [2021-10-28 22:49:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 185 states have (on average 1.4648648648648648) internal successors, (271), 190 states have internal predecessors, (271), 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) [2021-10-28 22:49:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 271 transitions. [2021-10-28 22:49:47,291 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 271 transitions. Word has length 22 [2021-10-28 22:49:47,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:47,292 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 271 transitions. [2021-10-28 22:49:47,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-10-28 22:49:47,293 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 271 transitions. [2021-10-28 22:49:47,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:49:47,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:47,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:47,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:49:47,296 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1605480230, now seen corresponding path program 1 times [2021-10-28 22:49:47,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:47,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555311251] [2021-10-28 22:49:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:47,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:47,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:47,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555311251] [2021-10-28 22:49:47,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555311251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:47,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:47,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:49:47,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600897559] [2021-10-28 22:49:47,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 22:49:47,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:47,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:49:47,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:49:47,411 INFO L87 Difference]: Start difference. First operand 191 states and 271 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-28 22:49:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:47,444 INFO L93 Difference]: Finished difference Result 345 states and 487 transitions. [2021-10-28 22:49:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:49:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-28 22:49:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:47,449 INFO L225 Difference]: With dead ends: 345 [2021-10-28 22:49:47,449 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 22:49:47,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:49:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 22:49:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 241. [2021-10-28 22:49:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 235 states have (on average 1.4297872340425533) internal successors, (336), 240 states have internal predecessors, (336), 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) [2021-10-28 22:49:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 336 transitions. [2021-10-28 22:49:47,478 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 336 transitions. Word has length 26 [2021-10-28 22:49:47,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:47,479 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 336 transitions. [2021-10-28 22:49:47,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-28 22:49:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 336 transitions. [2021-10-28 22:49:47,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:49:47,483 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:47,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:47,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:49:47,483 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash -855546000, now seen corresponding path program 1 times [2021-10-28 22:49:47,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:47,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990565515] [2021-10-28 22:49:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:47,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:47,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:47,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990565515] [2021-10-28 22:49:47,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990565515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:47,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:47,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:49:47,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020985663] [2021-10-28 22:49:47,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:49:47,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:47,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:49:47,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:49:47,609 INFO L87 Difference]: Start difference. First operand 241 states and 336 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-28 22:49:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:47,727 INFO L93 Difference]: Finished difference Result 608 states and 834 transitions. [2021-10-28 22:49:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:49:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-10-28 22:49:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:47,731 INFO L225 Difference]: With dead ends: 608 [2021-10-28 22:49:47,732 INFO L226 Difference]: Without dead ends: 443 [2021-10-28 22:49:47,736 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:49:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-10-28 22:49:47,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 298. [2021-10-28 22:49:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 292 states have (on average 1.4143835616438356) internal successors, (413), 297 states have internal predecessors, (413), 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) [2021-10-28 22:49:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 413 transitions. [2021-10-28 22:49:47,765 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 413 transitions. Word has length 26 [2021-10-28 22:49:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:47,767 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 413 transitions. [2021-10-28 22:49:47,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-28 22:49:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 413 transitions. [2021-10-28 22:49:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 22:49:47,770 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:47,771 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:47,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 22:49:47,771 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:47,772 INFO L85 PathProgramCache]: Analyzing trace with hash 755236346, now seen corresponding path program 1 times [2021-10-28 22:49:47,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:47,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185163843] [2021-10-28 22:49:47,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:47,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:47,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:47,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185163843] [2021-10-28 22:49:47,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185163843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:47,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:47,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:49:47,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192766411] [2021-10-28 22:49:47,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 22:49:47,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:47,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:49:47,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:49:47,870 INFO L87 Difference]: Start difference. First operand 298 states and 413 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-10-28 22:49:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:47,905 INFO L93 Difference]: Finished difference Result 429 states and 595 transitions. [2021-10-28 22:49:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:49:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-10-28 22:49:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:47,913 INFO L225 Difference]: With dead ends: 429 [2021-10-28 22:49:47,914 INFO L226 Difference]: Without dead ends: 354 [2021-10-28 22:49:47,915 INFO L786 BasicCegarLoop]: 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 [2021-10-28 22:49:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-28 22:49:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 312. [2021-10-28 22:49:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 306 states have (on average 1.3823529411764706) internal successors, (423), 311 states have internal predecessors, (423), 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) [2021-10-28 22:49:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 423 transitions. [2021-10-28 22:49:47,937 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 423 transitions. Word has length 30 [2021-10-28 22:49:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:47,937 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 423 transitions. [2021-10-28 22:49:47,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-10-28 22:49:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 423 transitions. [2021-10-28 22:49:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 22:49:47,942 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:47,942 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:47,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 22:49:47,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:47,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:47,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2021-10-28 22:49:47,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:47,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685842999] [2021-10-28 22:49:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:47,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:48,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:49:48,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685842999] [2021-10-28 22:49:48,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685842999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:48,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:48,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:49:48,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488974] [2021-10-28 22:49:48,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:49:48,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:49:48,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:49:48,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:49:48,107 INFO L87 Difference]: Start difference. First operand 312 states and 423 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-10-28 22:49:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:48,420 INFO L93 Difference]: Finished difference Result 813 states and 1106 transitions. [2021-10-28 22:49:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 22:49:48,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2021-10-28 22:49:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:48,427 INFO L225 Difference]: With dead ends: 813 [2021-10-28 22:49:48,427 INFO L226 Difference]: Without dead ends: 704 [2021-10-28 22:49:48,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-28 22:49:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-10-28 22:49:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 450. [2021-10-28 22:49:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 444 states have (on average 1.382882882882883) internal successors, (614), 449 states have internal predecessors, (614), 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) [2021-10-28 22:49:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 614 transitions. [2021-10-28 22:49:48,458 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 614 transitions. Word has length 30 [2021-10-28 22:49:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:48,459 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 614 transitions. [2021-10-28 22:49:48,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-10-28 22:49:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 614 transitions. [2021-10-28 22:49:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 22:49:48,461 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:48,462 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:48,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 22:49:48,462 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:48,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1878873742, now seen corresponding path program 1 times [2021-10-28 22:49:48,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:49:48,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734262838] [2021-10-28 22:49:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:48,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:49:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:49:48,554 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:49:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:49:48,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:49:48,644 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:49:48,645 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,647 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:49:48,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 22:49:48,653 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:48,656 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:49:48,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:49:48 BoogieIcfgContainer [2021-10-28 22:49:48,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:49:48,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:49:48,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:49:48,728 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:49:48,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:44" (3/4) ... [2021-10-28 22:49:48,732 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:49:48,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:49:48,734 INFO L168 Benchmark]: Toolchain (without parser) took 5033.10 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 75.0 MB in the beginning and 103.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,735 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 92.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:49:48,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.89 ms. Allocated memory is still 117.4 MB. Free memory was 74.7 MB in the beginning and 89.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.33 ms. Allocated memory is still 117.4 MB. Free memory was 89.2 MB in the beginning and 86.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,745 INFO L168 Benchmark]: Boogie Preprocessor took 44.27 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 85.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,746 INFO L168 Benchmark]: RCFGBuilder took 712.83 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 67.8 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,747 INFO L168 Benchmark]: TraceAbstraction took 3773.26 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 67.3 MB in the beginning and 103.7 MB in the end (delta: -36.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:49:48,747 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 161.5 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:49:48,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory is still 92.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 427.89 ms. Allocated memory is still 117.4 MB. Free memory was 74.7 MB in the beginning and 89.2 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.33 ms. Allocated memory is still 117.4 MB. Free memory was 89.2 MB in the beginning and 86.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.27 ms. Allocated memory is still 117.4 MB. Free memory was 86.6 MB in the beginning and 85.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 712.83 ms. Allocated memory is still 117.4 MB. Free memory was 85.0 MB in the beginning and 67.8 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3773.26 ms. Allocated memory was 117.4 MB in the beginning and 161.5 MB in the end (delta: 44.0 MB). Free memory was 67.3 MB in the beginning and 103.7 MB in the end (delta: -36.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.56 ms. Allocated memory is still 161.5 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND TRUE !(cond) [L9] reach_error() - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1043 SDtfs, 2459 SDslu, 3243 SDs, 0 SdLazy, 597 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=7, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 765 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2021-10-28 22:49:48,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:49:51,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:49:51,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:49:51,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:49:51,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:49:51,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:49:51,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:49:51,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:49:51,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:49:51,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:49:51,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:49:51,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:49:51,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:49:51,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:49:51,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:49:51,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:49:51,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:49:51,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:49:51,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:49:51,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:49:51,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:49:51,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:49:51,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:49:51,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:49:51,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:49:51,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:49:51,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:49:51,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:49:51,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:49:51,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:49:51,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:49:51,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:49:51,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:49:51,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:49:51,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:49:51,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:49:51,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:49:51,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:49:51,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:49:51,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:49:51,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:49:51,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 22:49:51,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:49:51,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:49:51,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:49:51,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:49:51,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:49:51,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:49:51,626 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:49:51,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:49:51,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:49:51,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:49:51,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:49:51,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:49:51,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:49:51,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:49:51,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 22:49:51,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 22:49:51,628 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:49:51,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:49:51,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:49:51,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:49:51,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:49:51,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:49:51,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:51,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 22:49:51,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:49:51,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:49:51,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:49:51,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:49:51,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 22:49:51,631 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_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 [2021-10-28 22:49:52,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:49:52,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:49:52,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:49:52,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:49:52,120 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:49:52,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-28 22:49:52,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/4ae596d29/dd9d34b5aa4a48e993db93062253d70a/FLAG7807074d3 [2021-10-28 22:49:52,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:49:52,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-28 22:49:52,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/4ae596d29/dd9d34b5aa4a48e993db93062253d70a/FLAG7807074d3 [2021-10-28 22:49:53,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/data/4ae596d29/dd9d34b5aa4a48e993db93062253d70a [2021-10-28 22:49:53,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:49:53,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:49:53,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:53,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:49:53,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:49:53,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d812376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53, skipping insertion in model container [2021-10-28 22:49:53,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:49:53,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:49:53,424 WARN L228 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_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-28 22:49:53,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:53,577 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:49:53,594 WARN L228 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_564d92f5-9d32-4761-90ad-3eacaff611f2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-28 22:49:53,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:49:53,670 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:49:53,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53 WrapperNode [2021-10-28 22:49:53,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:49:53,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:53,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:49:53,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:49:53,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:49:53,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:49:53,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:49:53,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:49:53,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:49:53,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:49:53,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:49:53,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:49:53,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (1/1) ... [2021-10-28 22:49:53,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:49:53,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:49:53,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:49:53,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:49:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 22:49:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:49:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:49:54,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:49:54,427 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-28 22:49:54,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:54 BoogieIcfgContainer [2021-10-28 22:49:54,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:49:54,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:49:54,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:49:54,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:49:54,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:49:53" (1/3) ... [2021-10-28 22:49:54,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:54, skipping insertion in model container [2021-10-28 22:49:54,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:49:53" (2/3) ... [2021-10-28 22:49:54,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:49:54, skipping insertion in model container [2021-10-28 22:49:54,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:54" (3/3) ... [2021-10-28 22:49:54,440 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-10-28 22:49:54,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:49:54,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 22:49:54,526 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:49:54,532 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:49:54,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 22:49:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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) [2021-10-28 22:49:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 22:49:54,556 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:54,557 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:54,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2021-10-28 22:49:54,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:54,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224482745] [2021-10-28 22:49:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:54,577 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:54,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:54,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:54,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 22:49:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:54,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:49:54,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:54,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:54,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:54,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224482745] [2021-10-28 22:49:54,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224482745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:54,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:54,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 22:49:54,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147682386] [2021-10-28 22:49:54,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:49:54,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:54,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:49:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:49:54,974 INFO L87 Difference]: Start difference. First operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-28 22:49:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:55,292 INFO L93 Difference]: Finished difference Result 397 states and 607 transitions. [2021-10-28 22:49:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:49:55,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-10-28 22:49:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:55,314 INFO L225 Difference]: With dead ends: 397 [2021-10-28 22:49:55,314 INFO L226 Difference]: Without dead ends: 295 [2021-10-28 22:49:55,317 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:49:55,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-28 22:49:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 120. [2021-10-28 22:49:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 119 states have internal predecessors, (172), 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) [2021-10-28 22:49:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2021-10-28 22:49:55,379 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 18 [2021-10-28 22:49:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:55,380 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2021-10-28 22:49:55,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-10-28 22:49:55,381 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2021-10-28 22:49:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 22:49:55,383 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:55,383 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:55,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:55,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:55,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash -908455500, now seen corresponding path program 1 times [2021-10-28 22:49:55,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:55,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603456089] [2021-10-28 22:49:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:55,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:55,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:55,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:55,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 22:49:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:55,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:49:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:55,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:55,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:55,846 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:55,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603456089] [2021-10-28 22:49:55,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603456089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:55,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:55,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 22:49:55,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139114149] [2021-10-28 22:49:55,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:49:55,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:55,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:49:55,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:49:55,851 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 22:49:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:56,055 INFO L93 Difference]: Finished difference Result 394 states and 543 transitions. [2021-10-28 22:49:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:49:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-10-28 22:49:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:56,060 INFO L225 Difference]: With dead ends: 394 [2021-10-28 22:49:56,061 INFO L226 Difference]: Without dead ends: 337 [2021-10-28 22:49:56,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:49:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-28 22:49:56,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 186. [2021-10-28 22:49:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 185 states have internal predecessors, (269), 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) [2021-10-28 22:49:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 269 transitions. [2021-10-28 22:49:56,124 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 269 transitions. Word has length 22 [2021-10-28 22:49:56,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:56,124 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 269 transitions. [2021-10-28 22:49:56,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 22:49:56,124 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 269 transitions. [2021-10-28 22:49:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 22:49:56,126 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:56,126 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:56,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:56,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:56,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:56,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1301482510, now seen corresponding path program 1 times [2021-10-28 22:49:56,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:56,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690989791] [2021-10-28 22:49:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:56,329 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:56,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:56,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:56,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 22:49:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:56,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:49:56,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:56,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:56,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:56,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690989791] [2021-10-28 22:49:56,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690989791] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:56,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:56,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 22:49:56,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686546699] [2021-10-28 22:49:56,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:49:56,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:49:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:49:56,674 INFO L87 Difference]: Start difference. First operand 186 states and 269 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 22:49:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:56,859 INFO L93 Difference]: Finished difference Result 378 states and 535 transitions. [2021-10-28 22:49:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:49:56,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-10-28 22:49:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:56,864 INFO L225 Difference]: With dead ends: 378 [2021-10-28 22:49:56,865 INFO L226 Difference]: Without dead ends: 295 [2021-10-28 22:49:56,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-28 22:49:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 278. [2021-10-28 22:49:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 272 states have (on average 1.474264705882353) internal successors, (401), 277 states have internal predecessors, (401), 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) [2021-10-28 22:49:56,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 401 transitions. [2021-10-28 22:49:56,919 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 401 transitions. Word has length 22 [2021-10-28 22:49:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:56,919 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 401 transitions. [2021-10-28 22:49:56,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-28 22:49:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 401 transitions. [2021-10-28 22:49:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 22:49:56,927 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:56,928 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:56,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:57,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:57,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 473524852, now seen corresponding path program 1 times [2021-10-28 22:49:57,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:57,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987815563] [2021-10-28 22:49:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:57,148 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:57,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:57,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:57,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 22:49:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:57,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:49:57,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:57,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:57,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:57,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987815563] [2021-10-28 22:49:57,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987815563] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:57,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:57,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 22:49:57,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295327908] [2021-10-28 22:49:57,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:49:57,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:57,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:49:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:49:57,505 INFO L87 Difference]: Start difference. First operand 278 states and 401 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-10-28 22:49:57,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:57,696 INFO L93 Difference]: Finished difference Result 395 states and 553 transitions. [2021-10-28 22:49:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:49:57,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2021-10-28 22:49:57,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:57,699 INFO L225 Difference]: With dead ends: 395 [2021-10-28 22:49:57,700 INFO L226 Difference]: Without dead ends: 318 [2021-10-28 22:49:57,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 22:49:57,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-28 22:49:57,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 258. [2021-10-28 22:49:57,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 252 states have (on average 1.4484126984126984) internal successors, (365), 257 states have internal predecessors, (365), 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) [2021-10-28 22:49:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2021-10-28 22:49:57,727 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 22 [2021-10-28 22:49:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:57,727 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2021-10-28 22:49:57,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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) [2021-10-28 22:49:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2021-10-28 22:49:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 22:49:57,730 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:57,731 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:57,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:57,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:57,947 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash 177561437, now seen corresponding path program 1 times [2021-10-28 22:49:57,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:57,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464939383] [2021-10-28 22:49:57,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:57,950 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:57,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:57,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 22:49:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:58,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:49:58,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:58,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:58,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:58,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464939383] [2021-10-28 22:49:58,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464939383] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:58,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:58,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-10-28 22:49:58,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942796674] [2021-10-28 22:49:58,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 22:49:58,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:49:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:58,316 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2021-10-28 22:49:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:58,614 INFO L93 Difference]: Finished difference Result 402 states and 541 transitions. [2021-10-28 22:49:58,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 22:49:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2021-10-28 22:49:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:58,617 INFO L225 Difference]: With dead ends: 402 [2021-10-28 22:49:58,618 INFO L226 Difference]: Without dead ends: 354 [2021-10-28 22:49:58,618 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-28 22:49:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-10-28 22:49:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 248. [2021-10-28 22:49:58,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 242 states have (on average 1.43801652892562) internal successors, (348), 247 states have internal predecessors, (348), 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) [2021-10-28 22:49:58,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 348 transitions. [2021-10-28 22:49:58,634 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 348 transitions. Word has length 26 [2021-10-28 22:49:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:58,634 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 348 transitions. [2021-10-28 22:49:58,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2021-10-28 22:49:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 348 transitions. [2021-10-28 22:49:58,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 22:49:58,636 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:58,636 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:58,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:58,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:58,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash 755236346, now seen corresponding path program 1 times [2021-10-28 22:49:58,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:58,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836983940] [2021-10-28 22:49:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:58,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:58,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:58,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 22:49:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:58,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:49:58,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:59,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:59,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:59,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836983940] [2021-10-28 22:49:59,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836983940] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:59,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:59,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 22:49:59,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452357740] [2021-10-28 22:49:59,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:49:59,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:59,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:49:59,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:49:59,163 INFO L87 Difference]: Start difference. First operand 248 states and 348 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-10-28 22:49:59,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:49:59,222 INFO L93 Difference]: Finished difference Result 456 states and 635 transitions. [2021-10-28 22:49:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:49:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 30 [2021-10-28 22:49:59,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:49:59,226 INFO L225 Difference]: With dead ends: 456 [2021-10-28 22:49:59,227 INFO L226 Difference]: Without dead ends: 381 [2021-10-28 22:49:59,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:49:59,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-10-28 22:49:59,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 310. [2021-10-28 22:49:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 304 states have (on average 1.3914473684210527) internal successors, (423), 309 states have internal predecessors, (423), 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) [2021-10-28 22:49:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 423 transitions. [2021-10-28 22:49:59,254 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 423 transitions. Word has length 30 [2021-10-28 22:49:59,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:49:59,256 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 423 transitions. [2021-10-28 22:49:59,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-10-28 22:49:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 423 transitions. [2021-10-28 22:49:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 22:49:59,259 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:49:59,259 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:49:59,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:49:59,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:49:59,475 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:49:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:49:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2021-10-28 22:49:59,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:49:59,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220565660] [2021-10-28 22:49:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:49:59,476 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:49:59,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:49:59,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:49:59,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 22:49:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:49:59,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 22:49:59,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:49:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:59,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:49:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:49:59,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:49:59,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220565660] [2021-10-28 22:49:59,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220565660] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:49:59,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:49:59,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-10-28 22:49:59,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307204171] [2021-10-28 22:49:59,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:49:59,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:49:59,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:49:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:49:59,867 INFO L87 Difference]: Start difference. First operand 310 states and 423 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-10-28 22:50:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:00,429 INFO L93 Difference]: Finished difference Result 912 states and 1264 transitions. [2021-10-28 22:50:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 22:50:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 30 [2021-10-28 22:50:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:50:00,435 INFO L225 Difference]: With dead ends: 912 [2021-10-28 22:50:00,435 INFO L226 Difference]: Without dead ends: 805 [2021-10-28 22:50:00,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-10-28 22:50:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-10-28 22:50:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 446. [2021-10-28 22:50:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 441 states have (on average 1.3786848072562359) internal successors, (608), 445 states have internal predecessors, (608), 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) [2021-10-28 22:50:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 608 transitions. [2021-10-28 22:50:00,486 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 608 transitions. Word has length 30 [2021-10-28 22:50:00,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:50:00,487 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 608 transitions. [2021-10-28 22:50:00,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-10-28 22:50:00,487 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 608 transitions. [2021-10-28 22:50:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 22:50:00,490 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:50:00,490 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:00,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:00,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:00,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:50:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2002224973, now seen corresponding path program 1 times [2021-10-28 22:50:00,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:50:00,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577028633] [2021-10-28 22:50:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:00,704 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:50:00,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:50:00,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:50:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 22:50:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:00,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 22:50:00,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:01,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:50:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:01,194 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:50:01,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577028633] [2021-10-28 22:50:01,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577028633] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:01,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:01,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-10-28 22:50:01,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266383531] [2021-10-28 22:50:01,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 22:50:01,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:50:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 22:50:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-28 22:50:01,196 INFO L87 Difference]: Start difference. First operand 446 states and 608 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2021-10-28 22:50:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:02,134 INFO L93 Difference]: Finished difference Result 746 states and 1004 transitions. [2021-10-28 22:50:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 22:50:02,135 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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 31 [2021-10-28 22:50:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:50:02,139 INFO L225 Difference]: With dead ends: 746 [2021-10-28 22:50:02,139 INFO L226 Difference]: Without dead ends: 705 [2021-10-28 22:50:02,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2021-10-28 22:50:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-10-28 22:50:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 444. [2021-10-28 22:50:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.3804100227790432) internal successors, (606), 443 states have internal predecessors, (606), 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) [2021-10-28 22:50:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 606 transitions. [2021-10-28 22:50:02,189 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 606 transitions. Word has length 31 [2021-10-28 22:50:02,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:50:02,190 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 606 transitions. [2021-10-28 22:50:02,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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) [2021-10-28 22:50:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 606 transitions. [2021-10-28 22:50:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 22:50:02,192 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:50:02,192 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:02,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:02,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:02,404 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:50:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2059483275, now seen corresponding path program 1 times [2021-10-28 22:50:02,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:50:02,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254232586] [2021-10-28 22:50:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:02,406 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:50:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:50:02,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:50:02,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 22:50:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:02,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:02,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:02,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:50:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:02,740 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:50:02,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254232586] [2021-10-28 22:50:02,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254232586] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:02,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:02,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 22:50:02,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115760673] [2021-10-28 22:50:02,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:50:02,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:50:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:50:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:50:02,745 INFO L87 Difference]: Start difference. First operand 444 states and 606 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 22:50:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:02,835 INFO L93 Difference]: Finished difference Result 501 states and 681 transitions. [2021-10-28 22:50:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:50:02,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-10-28 22:50:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:50:02,839 INFO L225 Difference]: With dead ends: 501 [2021-10-28 22:50:02,840 INFO L226 Difference]: Without dead ends: 496 [2021-10-28 22:50:02,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:50:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-10-28 22:50:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 444. [2021-10-28 22:50:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 443 states have internal predecessors, (601), 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) [2021-10-28 22:50:02,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 601 transitions. [2021-10-28 22:50:02,885 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 601 transitions. Word has length 31 [2021-10-28 22:50:02,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:50:02,887 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 601 transitions. [2021-10-28 22:50:02,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 22:50:02,887 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 601 transitions. [2021-10-28 22:50:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 22:50:02,890 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:50:02,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:02,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:03,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:03,102 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:50:03,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1226989779, now seen corresponding path program 1 times [2021-10-28 22:50:03,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:50:03,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313672758] [2021-10-28 22:50:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:03,103 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:50:03,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:50:03,104 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:50:03,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 22:50:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:03,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 22:50:03,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:03,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:50:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:03,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:50:03,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313672758] [2021-10-28 22:50:03,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313672758] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:03,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:03,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 22:50:03,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388504604] [2021-10-28 22:50:03,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:50:03,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:50:03,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:50:03,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:50:03,444 INFO L87 Difference]: Start difference. First operand 444 states and 601 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-10-28 22:50:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:03,548 INFO L93 Difference]: Finished difference Result 901 states and 1199 transitions. [2021-10-28 22:50:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:50:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 32 [2021-10-28 22:50:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:50:03,554 INFO L225 Difference]: With dead ends: 901 [2021-10-28 22:50:03,554 INFO L226 Difference]: Without dead ends: 842 [2021-10-28 22:50:03,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:50:03,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2021-10-28 22:50:03,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 476. [2021-10-28 22:50:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.3715498938428874) internal successors, (646), 475 states have internal predecessors, (646), 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) [2021-10-28 22:50:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 646 transitions. [2021-10-28 22:50:03,603 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 646 transitions. Word has length 32 [2021-10-28 22:50:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:50:03,605 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 646 transitions. [2021-10-28 22:50:03,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-10-28 22:50:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 646 transitions. [2021-10-28 22:50:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 22:50:03,606 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:50:03,607 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:03,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:03,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:03,819 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 22:50:03,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1711564241, now seen corresponding path program 1 times [2021-10-28 22:50:03,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:50:03,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240915349] [2021-10-28 22:50:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:03,820 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:50:03,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:50:03,821 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:50:03,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 22:50:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:04,045 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:04,180 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 22:50:04,180 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:50:04,182 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:50:04,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:04,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:50:04,407 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:04,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:50:04,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:50:04 BoogieIcfgContainer [2021-10-28 22:50:04,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:50:04,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:50:04,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:50:04,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:50:04,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:49:54" (3/4) ... [2021-10-28 22:50:04,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:50:04,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:50:04,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:50:04,580 INFO L168 Benchmark]: Toolchain (without parser) took 11432.39 ms. Allocated memory was 54.5 MB in the beginning and 94.4 MB in the end (delta: 39.8 MB). Free memory was 32.3 MB in the beginning and 31.4 MB in the end (delta: 880.7 kB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,581 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.8 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:04,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.27 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 54.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.28 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 51.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,582 INFO L168 Benchmark]: Boogie Preprocessor took 49.54 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 49.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,582 INFO L168 Benchmark]: RCFGBuilder took 635.75 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 49.3 MB in the end (delta: 323.0 kB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,583 INFO L168 Benchmark]: TraceAbstraction took 10056.37 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 48.6 MB in the beginning and 35.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,583 INFO L168 Benchmark]: Witness Printer took 90.49 ms. Allocated memory is still 94.4 MB. Free memory was 35.7 MB in the beginning and 31.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:04,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.8 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.27 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 54.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.28 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 51.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.54 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 49.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 635.75 ms. Allocated memory is still 73.4 MB. Free memory was 49.6 MB in the beginning and 49.3 MB in the end (delta: 323.0 kB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10056.37 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 48.6 MB in the beginning and 35.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * Witness Printer took 90.49 ms. Allocated memory is still 94.4 MB. Free memory was 35.7 MB in the beginning and 31.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND FALSE !(!(cond)) [L107] delta = ea - eb [L8] COND TRUE !(cond) [L9] reach_error() - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1434 SDtfs, 3939 SDslu, 5495 SDs, 0 SdLazy, 1126 SolverSat, 117 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 571 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=476occurred in iteration=10, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 1618 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 508 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 40 NumberOfNonLiveVariables, 764 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 proved your program to be incorrect! [2021-10-28 22:50:04,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_564d92f5-9d32-4761-90ad-3eacaff611f2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...