./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.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_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg --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 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b ................................................................................................................................................................................................................................................................................................................... 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_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg --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 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:12:41,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:12:41,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:12:41,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:12:41,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:12:41,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:12:41,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:12:41,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:12:41,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:12:41,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:12:41,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:12:41,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:12:41,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:12:41,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:12:41,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:12:41,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:12:41,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:12:41,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:12:41,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:12:41,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:12:41,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:12:41,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:12:41,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:12:41,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:12:41,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:12:41,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:12:41,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:12:41,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:12:41,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:12:41,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:12:41,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:12:41,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:12:41,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:12:41,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:12:41,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:12:41,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:12:41,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:12:41,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:12:41,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:12:41,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:12:41,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:12:41,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:12:41,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:12:41,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:12:41,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:12:41,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:12:41,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:12:41,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:12:41,555 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:12:41,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:12:41,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:12:41,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:12:41,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:12:41,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:12:41,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:12:41,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:12:41,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:12:41,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:12:41,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:12:41,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:12:41,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:12:41,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:12:41,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:12:41,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:12:41,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:12:41,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:12:41,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:12:41,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:12:41,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:12:41,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:12:41,561 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:12:41,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:12:41,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:12:41,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:12:41,564 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_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b [2021-10-28 09:12:41,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:12:41,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:12:41,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:12:41,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:12:41,894 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:12:41,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-28 09:12:42,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/5795dee9d/1b8ed4bffc784ee5a9cea3e18109b3c0/FLAG127ae6cea [2021-10-28 09:12:42,509 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:12:42,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-28 09:12:42,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/5795dee9d/1b8ed4bffc784ee5a9cea3e18109b3c0/FLAG127ae6cea [2021-10-28 09:12:42,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/5795dee9d/1b8ed4bffc784ee5a9cea3e18109b3c0 [2021-10-28 09:12:42,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:12:42,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:12:42,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:12:42,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:12:42,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:12:42,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:12:42" (1/1) ... [2021-10-28 09:12:42,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119cffb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:42, skipping insertion in model container [2021-10-28 09:12:42,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:12:42" (1/1) ... [2021-10-28 09:12:42,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:12:42,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:12:43,071 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_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-28 09:12:43,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:12:43,128 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:12:43,143 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_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-28 09:12:43,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:12:43,172 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:12:43,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43 WrapperNode [2021-10-28 09:12:43,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:12:43,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:12:43,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:12:43,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:12:43,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:12:43,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:12:43,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:12:43,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:12:43,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:12:43,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:12:43,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:12:43,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:12:43,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (1/1) ... [2021-10-28 09:12:43,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:12:43,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:12:43,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:12:43,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:12:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:12:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:12:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:12:43,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:12:43,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:12:43,641 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-28 09:12:43,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:12:43 BoogieIcfgContainer [2021-10-28 09:12:43,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:12:43,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:12:43,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:12:43,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:12:43,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:12:42" (1/3) ... [2021-10-28 09:12:43,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b5a219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:12:43, skipping insertion in model container [2021-10-28 09:12:43,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:43" (2/3) ... [2021-10-28 09:12:43,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b5a219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:12:43, skipping insertion in model container [2021-10-28 09:12:43,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:12:43" (3/3) ... [2021-10-28 09:12:43,653 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-10-28 09:12:43,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:12:43,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 09:12:43,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:12:43,725 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 09:12:43,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 09:12:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 09:12:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:12:43,750 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:12:43,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:12:43,751 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 09:12:43,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:12:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-28 09:12:43,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:12:43,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842681168] [2021-10-28 09:12:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:12:43,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:12:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:12:44,066 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 09:12:44,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:12:44,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842681168] [2021-10-28 09:12:44,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842681168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:12:44,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:12:44,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:12:44,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450520140] [2021-10-28 09:12:44,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:12:44,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:12:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:12:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:12:44,110 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 09:12:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:12:44,138 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-28 09:12:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:12:44,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-28 09:12:44,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:12:44,151 INFO L225 Difference]: With dead ends: 63 [2021-10-28 09:12:44,152 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 09:12:44,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:12:44,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 09:12:44,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 09:12:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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 09:12:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-28 09:12:44,197 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-28 09:12:44,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:12:44,197 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-28 09:12:44,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 09:12:44,198 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-28 09:12:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:12:44,199 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:12:44,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:12:44,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:12:44,200 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 09:12:44,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:12:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-28 09:12:44,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:12:44,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074346256] [2021-10-28 09:12:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:12:44,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:12:44,239 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 09:12:44,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923410240] [2021-10-28 09:12:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:12:44,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:12:44,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:12:44,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:12:44,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:12:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:12:44,344 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:12:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:12:44,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:12:44,390 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:12:44,391 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,397 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:12:44,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:12:44,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:12:44,620 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:12:44,623 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:12:44,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:12:44 BoogieIcfgContainer [2021-10-28 09:12:44,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:12:44,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:12:44,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:12:44,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:12:44,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:12:43" (3/4) ... [2021-10-28 09:12:44,666 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:12:44,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:12:44,671 INFO L168 Benchmark]: Toolchain (without parser) took 1814.16 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 44.4 MB in the beginning and 34.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,673 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:12:44,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.22 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 44.2 MB in the beginning and 73.1 MB in the end (delta: -28.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 96.5 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,684 INFO L168 Benchmark]: Boogie Preprocessor took 53.92 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 70.5 MB in the end (delta: 972.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,685 INFO L168 Benchmark]: RCFGBuilder took 339.06 ms. Allocated memory is still 96.5 MB. Free memory was 70.5 MB in the beginning and 60.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,685 INFO L168 Benchmark]: TraceAbstraction took 1013.40 ms. Allocated memory is still 96.5 MB. Free memory was 59.6 MB in the beginning and 34.4 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:12:44,686 INFO L168 Benchmark]: Witness Printer took 7.03 ms. Allocated memory is still 96.5 MB. Free memory was 34.4 MB in the beginning and 34.1 MB in the end (delta: 374.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:12:44,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.22 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 44.2 MB in the beginning and 73.1 MB in the end (delta: -28.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 96.5 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.92 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 70.5 MB in the end (delta: 972.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 339.06 ms. Allocated memory is still 96.5 MB. Free memory was 70.5 MB in the beginning and 60.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1013.40 ms. Allocated memory is still 96.5 MB. Free memory was 59.6 MB in the beginning and 34.4 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.03 ms. Allocated memory is still 96.5 MB. Free memory was 34.4 MB in the beginning and 34.1 MB in the end (delta: 374.7 kB). 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: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: 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: 19]: 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: 19]: 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: 19]: 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: 19]: 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, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 09:12:44,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:12:47,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:12:47,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:12:47,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:12:47,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:12:47,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:12:47,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:12:47,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:12:47,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:12:47,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:12:47,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:12:47,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:12:47,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:12:47,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:12:47,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:12:47,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:12:47,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:12:47,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:12:47,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:12:47,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:12:47,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:12:47,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:12:47,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:12:47,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:12:47,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:12:47,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:12:47,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:12:47,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:12:47,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:12:47,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:12:47,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:12:47,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:12:47,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:12:47,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:12:47,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:12:47,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:12:47,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:12:47,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:12:47,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:12:47,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:12:47,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:12:47,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 09:12:47,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:12:47,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:12:47,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:12:47,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:12:47,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:12:47,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:12:47,818 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:12:47,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:12:47,819 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:12:47,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:12:47,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:12:47,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:12:47,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:12:47,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:12:47,821 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:12:47,821 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:12:47,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:12:47,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:12:47,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:12:47,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:12:47,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:12:47,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:12:47,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:12:47,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:12:47,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:12:47,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:12:47,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:12:47,824 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:12:47,824 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:12:47,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:12:47,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:12:47,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:12:47,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:12:47,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:12:47,826 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_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b [2021-10-28 09:12:48,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:12:48,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:12:48,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:12:48,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:12:48,363 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:12:48,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-28 09:12:48,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/41cd3bbe8/febd38a428d147998acb9d0e23e267b2/FLAG9610fe08a [2021-10-28 09:12:49,198 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:12:49,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-28 09:12:49,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/41cd3bbe8/febd38a428d147998acb9d0e23e267b2/FLAG9610fe08a [2021-10-28 09:12:49,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/data/41cd3bbe8/febd38a428d147998acb9d0e23e267b2 [2021-10-28 09:12:49,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:12:49,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:12:49,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:12:49,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:12:49,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:12:49,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cc13aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49, skipping insertion in model container [2021-10-28 09:12:49,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:12:49,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:12:49,793 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_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-28 09:12:49,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:12:49,855 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:12:49,869 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_bccf78a4-db24-4594-b12d-83a09563e110/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-28 09:12:49,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:12:49,901 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:12:49,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49 WrapperNode [2021-10-28 09:12:49,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:12:49,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:12:49,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:12:49,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:12:49,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:12:49,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:12:49,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:12:49,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:12:49,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:49,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:50,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:50,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:12:50,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:12:50,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:12:50,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:12:50,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (1/1) ... [2021-10-28 09:12:50,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:12:50,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:12:50,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:12:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:12:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:12:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:12:50,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:12:50,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:13:02,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:13:02,507 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-28 09:13:02,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:02 BoogieIcfgContainer [2021-10-28 09:13:02,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:13:02,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:13:02,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:13:02,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:13:02,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:12:49" (1/3) ... [2021-10-28 09:13:02,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55141207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:13:02, skipping insertion in model container [2021-10-28 09:13:02,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:12:49" (2/3) ... [2021-10-28 09:13:02,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55141207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:13:02, skipping insertion in model container [2021-10-28 09:13:02,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:02" (3/3) ... [2021-10-28 09:13:02,521 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-10-28 09:13:02,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:13:02,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 09:13:02,590 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:13:02,598 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 09:13:02,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 09:13:02,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 09:13:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:13:02,627 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:02,628 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:02,629 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 09:13:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-28 09:13:02,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:13:02,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416237385] [2021-10-28 09:13:02,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:02,654 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:13:02,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:13:02,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:13:02,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:13:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:02,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:13:02,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:02,979 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 09:13:02,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:13:03,040 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 09:13:03,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:13:03,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416237385] [2021-10-28 09:13:03,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416237385] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:03,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:03,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:13:03,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777418347] [2021-10-28 09:13:03,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:13:03,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:13:03,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:13:03,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:13:03,080 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 09:13:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:03,107 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-28 09:13:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:13:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-28 09:13:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:03,121 INFO L225 Difference]: With dead ends: 63 [2021-10-28 09:13:03,121 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 09:13:03,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:13:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 09:13:03,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 09:13:03,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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 09:13:03,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-28 09:13:03,160 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-28 09:13:03,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:03,161 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-28 09:13:03,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 09:13:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-28 09:13:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:13:03,162 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:03,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:03,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 09:13:03,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:13:03,378 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 09:13:03,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:03,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-28 09:13:03,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:13:03,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677148785] [2021-10-28 09:13:03,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:03,381 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:13:03,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:13:03,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:13:03,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:13:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:03,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:13:03,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:04,052 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 09:13:04,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:13:10,446 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 09:13:10,446 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:13:10,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677148785] [2021-10-28 09:13:10,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677148785] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:10,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:10,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 09:13:10,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047566774] [2021-10-28 09:13:10,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:13:10,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:13:10,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:13:10,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:10,453 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:43,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:43,065 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-28 09:13:43,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:13:43,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 09:13:43,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:43,072 INFO L225 Difference]: With dead ends: 34 [2021-10-28 09:13:43,072 INFO L226 Difference]: Without dead ends: 32 [2021-10-28 09:13:43,074 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:13:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-28 09:13:43,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-28 09:13:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 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 09:13:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-28 09:13:43,097 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-10-28 09:13:43,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:43,098 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-28 09:13:43,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:43,100 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-28 09:13:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 09:13:43,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:43,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:43,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:43,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:13:43,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 09:13:43,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-28 09:13:43,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:13:43,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047831920] [2021-10-28 09:13:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:43,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:13:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:13:43,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:13:43,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:13:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:44,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:13:44,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:45,993 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 09:13:45,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:13:52,218 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-28 09:13:54,263 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-28 09:14:23,998 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 09:14:23,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:14:23,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047831920] [2021-10-28 09:14:23,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047831920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:23,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:23,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-28 09:14:23,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164920075] [2021-10-28 09:14:24,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:14:24,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:14:24,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:14:24,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-10-28 09:14:24,002 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 09:14:28,945 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))))) (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse0 .cse1 (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (or (not .cse1) (not .cse0))) (and .cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse1)) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-28 09:14:31,865 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-28 09:15:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:15,497 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-10-28 09:15:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:15:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 9 [2021-10-28 09:15:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:15,499 INFO L225 Difference]: With dead ends: 36 [2021-10-28 09:15:15,499 INFO L226 Difference]: Without dead ends: 34 [2021-10-28 09:15:15,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=41, Invalid=77, Unknown=4, NotChecked=60, Total=182 [2021-10-28 09:15:15,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-28 09:15:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-28 09:15:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 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 09:15:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-28 09:15:15,508 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-10-28 09:15:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:15,509 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-28 09:15:15,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 09:15:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-28 09:15:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:15:15,510 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:15,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:15,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:15:15,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:15:15,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-28 09:15:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-28 09:15:15,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:15:15,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555135366] [2021-10-28 09:15:15,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:15,730 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:15:15,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:15:15,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:15:15,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:15:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:15:18,260 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:17:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:17:37,719 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:17:37,720 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:17:37,721 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:17:37,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:17:37,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:17:37,928 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 09:17:37,931 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:17:37,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:17:37 BoogieIcfgContainer [2021-10-28 09:17:37,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:17:37,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:17:37,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:17:37,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:17:37,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:02" (3/4) ... [2021-10-28 09:17:37,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:17:38,027 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:17:38,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:17:38,030 INFO L168 Benchmark]: Toolchain (without parser) took 288521.83 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 59.8 MB in the beginning and 76.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,030 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 75.5 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:17:38,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.82 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 48.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.68 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 46.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:17:38,033 INFO L168 Benchmark]: Boogie Preprocessor took 62.01 ms. Allocated memory is still 75.5 MB. Free memory was 46.8 MB in the beginning and 45.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,034 INFO L168 Benchmark]: RCFGBuilder took 12492.76 ms. Allocated memory is still 75.5 MB. Free memory was 45.2 MB in the beginning and 54.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,035 INFO L168 Benchmark]: TraceAbstraction took 275450.23 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 54.2 MB in the beginning and 78.9 MB in the end (delta: -24.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,036 INFO L168 Benchmark]: Witness Printer took 64.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.9 MB in the beginning and 76.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:17:38,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 75.5 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.82 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 48.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.68 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 46.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.01 ms. Allocated memory is still 75.5 MB. Free memory was 46.8 MB in the beginning and 45.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12492.76 ms. Allocated memory is still 75.5 MB. Free memory was 45.2 MB in the beginning and 54.8 MB in the end (delta: -9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 275450.23 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 54.2 MB in the beginning and 78.9 MB in the end (delta: -24.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 64.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.9 MB in the beginning and 76.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: 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: 19]: 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: 19]: 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: 19]: 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: 19]: 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, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 275.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 84.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 75 SolverSat, 10 SolverUnsat, 30 SolverUnknown, 0 SolverNotchecked, 76.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 31.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 46.9s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 09:17:38,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bccf78a4-db24-4594-b12d-83a09563e110/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...