./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8 --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 d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:23:37,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:23:37,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:23:37,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:23:37,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:23:37,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:23:37,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:23:37,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:23:37,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:23:37,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:23:37,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:23:37,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:23:37,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:23:37,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:23:37,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:23:37,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:23:37,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:23:37,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:23:37,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:23:37,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:23:37,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:23:37,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:23:37,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:23:37,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:23:37,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:23:37,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:23:37,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:23:37,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:23:37,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:23:37,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:23:37,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:23:37,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:23:37,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:23:37,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:23:37,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:23:37,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:23:37,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:23:37,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:23:37,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:23:37,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:23:37,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:23:37,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:23:38,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:23:38,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:23:38,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:23:38,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:23:38,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:23:38,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:23:38,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:23:38,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:23:38,013 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:23:38,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:23:38,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:23:38,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:23:38,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:23:38,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:23:38,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:23:38,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:23:38,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:23:38,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:23:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:23:38,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:23:38,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:23:38,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:23:38,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:23:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:23:38,017 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 [2022-12-13 22:23:38,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:23:38,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:23:38,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:23:38,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:23:38,227 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:23:38,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-benchs/rlim_invariant.c [2022-12-13 22:23:40,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:23:40,926 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:23:40,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c [2022-12-13 22:23:40,930 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/8a7aa6807/f1fa1b1127514320be3962b60a41bf1b/FLAG1702160a6 [2022-12-13 22:23:41,351 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/8a7aa6807/f1fa1b1127514320be3962b60a41bf1b [2022-12-13 22:23:41,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:23:41,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:23:41,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:23:41,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:23:41,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:23:41,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7af7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41, skipping insertion in model container [2022-12-13 22:23:41,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:23:41,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:23:41,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2022-12-13 22:23:41,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:23:41,499 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:23:41,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2022-12-13 22:23:41,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:23:41,520 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:23:41,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41 WrapperNode [2022-12-13 22:23:41,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:23:41,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:23:41,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:23:41,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:23:41,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,542 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2022-12-13 22:23:41,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:23:41,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:23:41,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:23:41,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:23:41,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:23:41,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:23:41,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:23:41,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:23:41,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (1/1) ... [2022-12-13 22:23:41,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:23:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:23:41,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:23:41,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:23:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:23:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 22:23:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 22:23:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:23:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:23:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:23:41,676 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:23:41,678 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:23:41,765 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:23:41,771 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:23:41,771 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 22:23:41,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:23:41 BoogieIcfgContainer [2022-12-13 22:23:41,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:23:41,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:23:41,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:23:41,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:23:41,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:23:41" (1/3) ... [2022-12-13 22:23:41,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a94f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:23:41, skipping insertion in model container [2022-12-13 22:23:41,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:41" (2/3) ... [2022-12-13 22:23:41,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a94f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:23:41, skipping insertion in model container [2022-12-13 22:23:41,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:23:41" (3/3) ... [2022-12-13 22:23:41,782 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c [2022-12-13 22:23:41,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:23:41,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:23:41,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:23:41,856 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55358d8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:23:41,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:23:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:41,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 22:23:41,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:41,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:41,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:41,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1358229485, now seen corresponding path program 1 times [2022-12-13 22:23:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:23:41,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777995537] [2022-12-13 22:23:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:41,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:23:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 22:23:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 22:23:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 22:23:42,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:23:42,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777995537] [2022-12-13 22:23:42,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777995537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:23:42,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:23:42,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:23:42,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840722692] [2022-12-13 22:23:42,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:23:42,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:23:42,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:23:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:23:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:23:42,053 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:23:42,072 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2022-12-13 22:23:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:23:42,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-12-13 22:23:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:23:42,081 INFO L225 Difference]: With dead ends: 42 [2022-12-13 22:23:42,081 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 22:23:42,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:23:42,088 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:23:42,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:23:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 22:23:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 22:23:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-13 22:23:42,118 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 18 [2022-12-13 22:23:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:23:42,118 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-13 22:23:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-13 22:23:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 22:23:42,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:42,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:42,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:23:42,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -37923155, now seen corresponding path program 1 times [2022-12-13 22:23:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:23:42,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247594680] [2022-12-13 22:23:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:42,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:23:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:23:42,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:23:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:23:42,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:23:42,167 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:23:42,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 22:23:42,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:23:42,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:23:42,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:23:42,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:23:42 BoogieIcfgContainer [2022-12-13 22:23:42,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:23:42,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:23:42,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:23:42,191 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:23:42,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:23:41" (3/4) ... [2022-12-13 22:23:42,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:23:42,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:23:42,195 INFO L158 Benchmark]: Toolchain (without parser) took 840.65ms. Allocated memory is still 130.0MB. Free memory was 92.3MB in the beginning and 59.5MB in the end (delta: 32.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-13 22:23:42,196 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:23:42,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.01ms. Allocated memory is still 130.0MB. Free memory was 92.3MB in the beginning and 98.7MB in the end (delta: -6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 22:23:42,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.98ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:23:42,197 INFO L158 Benchmark]: Boogie Preprocessor took 15.02ms. Allocated memory is still 130.0MB. Free memory was 97.2MB in the beginning and 96.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:23:42,198 INFO L158 Benchmark]: RCFGBuilder took 214.93ms. Allocated memory is still 130.0MB. Free memory was 96.1MB in the beginning and 86.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 22:23:42,198 INFO L158 Benchmark]: TraceAbstraction took 414.22ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 60.0MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 22:23:42,199 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 130.0MB. Free memory was 60.0MB in the beginning and 59.5MB in the end (delta: 472.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:23:42,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.01ms. Allocated memory is still 130.0MB. Free memory was 92.3MB in the beginning and 98.7MB in the end (delta: -6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.98ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 97.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.02ms. Allocated memory is still 130.0MB. Free memory was 97.2MB in the beginning and 96.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.93ms. Allocated memory is still 130.0MB. Free memory was 96.1MB in the beginning and 86.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 414.22ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 60.0MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 130.0MB. Free memory was 60.0MB in the beginning and 59.5MB in the end (delta: 472.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 32, overapproximation of to_real at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] float X, Y, S, R, D; [L15] int i; [L17] Y = 0 [L19] i = 0 VAL [i=0] [L19] COND TRUE i < 100000 [L21] X = __VERIFIER_nondet_float() [L22] D = __VERIFIER_nondet_float() [L23] CALL assume_abort_if_not(X >= -128.f && X <= 128.f) VAL [\old(cond)=1] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L23] RET assume_abort_if_not(X >= -128.f && X <= 128.f) VAL [D=53, i=0, X=54] [L24] CALL assume_abort_if_not(D >= 0.f && D <= 16.f) VAL [\old(cond)=1] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L24] RET assume_abort_if_not(D >= 0.f && D <= 16.f) VAL [D=53, i=0, X=54] [L26] S = Y [L27] Y = X [L28] R = X - S VAL [D=53, i=0, S=55, X=54, Y=54] [L29] COND TRUE R <= -D [L29] Y = S - D VAL [D=53, i=0, S=55, X=54] [L32] CALL __VERIFIER_assert(Y >= -129.f && Y <= 129.f) [L10] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L10] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 22:23:42,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8 --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 d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:23:43,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:23:43,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:23:43,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:23:43,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:23:43,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:23:43,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:23:43,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:23:43,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:23:43,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:23:43,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:23:43,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:23:43,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:23:43,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:23:43,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:23:43,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:23:43,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:23:43,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:23:43,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:23:43,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:23:43,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:23:43,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:23:43,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:23:43,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:23:43,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:23:43,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:23:43,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:23:43,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:23:43,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:23:43,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:23:43,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:23:43,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:23:43,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:23:43,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:23:43,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:23:43,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:23:43,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:23:43,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:23:43,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:23:43,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:23:43,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:23:43,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 22:23:43,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:23:43,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:23:43,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:23:43,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:23:43,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:23:43,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:23:43,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:23:43,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:23:43,834 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:23:43,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:23:43,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:23:43,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:23:43,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:23:43,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:23:43,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:23:43,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 22:23:43,837 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:23:43,838 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 [2022-12-13 22:23:44,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:23:44,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:23:44,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:23:44,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:23:44,092 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:23:44,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-benchs/rlim_invariant.c [2022-12-13 22:23:46,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:23:46,754 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:23:46,754 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c [2022-12-13 22:23:46,759 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/bd672c530/057b53e910984fd1b7a471b8b96cd2df/FLAG13870faf7 [2022-12-13 22:23:46,771 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/data/bd672c530/057b53e910984fd1b7a471b8b96cd2df [2022-12-13 22:23:46,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:23:46,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:23:46,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:23:46,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:23:46,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:23:46,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da4ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46, skipping insertion in model container [2022-12-13 22:23:46,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:23:46,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:23:46,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2022-12-13 22:23:46,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:23:46,929 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:23:46,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2022-12-13 22:23:46,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:23:46,952 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:23:46,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46 WrapperNode [2022-12-13 22:23:46,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:23:46,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:23:46,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:23:46,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:23:46,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,978 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-13 22:23:46,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:23:46,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:23:46,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:23:46,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:23:46,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,995 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:46,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:23:46,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:23:46,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:23:46,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:23:46,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (1/1) ... [2022-12-13 22:23:47,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:23:47,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:23:47,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:23:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:23:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:23:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 22:23:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 22:23:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 22:23:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:23:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:23:47,108 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:23:47,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:23:47,326 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:23:47,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:23:47,330 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 22:23:47,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:23:47 BoogieIcfgContainer [2022-12-13 22:23:47,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:23:47,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:23:47,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:23:47,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:23:47,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:23:46" (1/3) ... [2022-12-13 22:23:47,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b336af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:23:47, skipping insertion in model container [2022-12-13 22:23:47,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:23:46" (2/3) ... [2022-12-13 22:23:47,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b336af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:23:47, skipping insertion in model container [2022-12-13 22:23:47,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:23:47" (3/3) ... [2022-12-13 22:23:47,338 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c [2022-12-13 22:23:47,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:23:47,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:23:47,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:23:47,395 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a5c9a3a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:23:47,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:23:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 22:23:47,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:47,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:47,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1358229485, now seen corresponding path program 1 times [2022-12-13 22:23:47,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:23:47,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848147733] [2022-12-13 22:23:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:47,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:47,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:23:47,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:23:47,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 22:23:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:47,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 22:23:47,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:23:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:23:47,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:23:47,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:23:47,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848147733] [2022-12-13 22:23:47,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848147733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:23:47,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:23:47,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:23:47,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789765629] [2022-12-13 22:23:47,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:23:47,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:23:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:23:47,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:23:47,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:23:47,591 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:47,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:23:47,610 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2022-12-13 22:23:47,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:23:47,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-12-13 22:23:47,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:23:47,619 INFO L225 Difference]: With dead ends: 42 [2022-12-13 22:23:47,619 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 22:23:47,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:23:47,625 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:23:47,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:23:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 22:23:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 22:23:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:23:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-13 22:23:47,650 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 18 [2022-12-13 22:23:47,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:23:47,650 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-13 22:23:47,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-13 22:23:47,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 22:23:47,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:47,651 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:47,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:23:47,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:47,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -37923155, now seen corresponding path program 1 times [2022-12-13 22:23:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:23:47,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048040926] [2022-12-13 22:23:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:47,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:47,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:23:47,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:23:47,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 22:23:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:48,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 22:23:48,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:23:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:23:48,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:23:48,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:23:48,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048040926] [2022-12-13 22:23:48,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048040926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:23:48,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:23:48,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:23:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805405720] [2022-12-13 22:23:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:23:48,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:23:48,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:23:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:23:48,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:23:48,481 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:23:49,832 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2022-12-13 22:23:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:23:49,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-12-13 22:23:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:23:49,833 INFO L225 Difference]: With dead ends: 44 [2022-12-13 22:23:49,833 INFO L226 Difference]: Without dead ends: 42 [2022-12-13 22:23:49,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:23:49,834 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:23:49,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 65 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 22:23:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-13 22:23:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 25. [2022-12-13 22:23:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:23:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-12-13 22:23:49,841 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 18 [2022-12-13 22:23:49,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:23:49,841 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-12-13 22:23:49,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-12-13 22:23:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 22:23:49,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:49,842 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:49,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 22:23:50,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:50,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1173892842, now seen corresponding path program 1 times [2022-12-13 22:23:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:23:50,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945085823] [2022-12-13 22:23:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:50,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:50,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:23:50,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:23:50,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 22:23:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:50,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 22:23:50,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:23:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:23:50,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:23:50,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:23:50,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945085823] [2022-12-13 22:23:50,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945085823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:23:50,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:23:50,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:23:50,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650222351] [2022-12-13 22:23:50,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:23:50,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 22:23:50,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:23:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 22:23:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 22:23:50,417 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:23:51,709 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2022-12-13 22:23:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 22:23:51,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-12-13 22:23:51,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:23:51,711 INFO L225 Difference]: With dead ends: 46 [2022-12-13 22:23:51,711 INFO L226 Difference]: Without dead ends: 44 [2022-12-13 22:23:51,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:23:51,712 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:23:51,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 85 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 22:23:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-13 22:23:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 26. [2022-12-13 22:23:51,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:23:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-12-13 22:23:51,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 19 [2022-12-13 22:23:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:23:51,717 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-12-13 22:23:51,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:23:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-12-13 22:23:51,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 22:23:51,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:51,718 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:51,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 22:23:51,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:51,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1173833260, now seen corresponding path program 1 times [2022-12-13 22:23:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:23:51,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839388846] [2022-12-13 22:23:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:51,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:51,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:23:51,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:23:51,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 22:23:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:52,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 22:23:52,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:23:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:23:52,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:23:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:23:52,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:23:52,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839388846] [2022-12-13 22:23:52,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839388846] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:23:52,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:23:52,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-12-13 22:23:52,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360846853] [2022-12-13 22:23:52,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:23:52,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 22:23:52,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:23:52,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 22:23:52,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 22:23:52,334 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 22:23:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:23:53,315 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2022-12-13 22:23:53,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 22:23:53,316 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 19 [2022-12-13 22:23:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:23:53,317 INFO L225 Difference]: With dead ends: 41 [2022-12-13 22:23:53,317 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 22:23:53,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-12-13 22:23:53,318 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 46 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:23:53,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 102 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 22:23:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 22:23:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2022-12-13 22:23:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:23:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-12-13 22:23:53,326 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 19 [2022-12-13 22:23:53,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:23:53,326 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-12-13 22:23:53,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 22:23:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-12-13 22:23:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 22:23:53,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:23:53,328 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:23:53,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-13 22:23:53,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:53,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:23:53,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:23:53,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1809540222, now seen corresponding path program 1 times [2022-12-13 22:23:53,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:23:53,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535367308] [2022-12-13 22:23:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:23:53,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:23:53,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:23:53,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:23:53,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 22:23:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:23:53,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 22:23:53,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:24:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 22:24:25,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:25:04,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:25:04,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535367308] [2022-12-13 22:25:04,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535367308] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:25:04,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1688180655] [2022-12-13 22:25:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:25:04,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 22:25:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 22:25:04,726 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 22:25:04,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-13 22:25:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:25:05,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 22:25:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:25:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 22:25:33,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:26:03,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1688180655] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:26:03,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 22:26:03,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2022-12-13 22:26:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165532156] [2022-12-13 22:26:03,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 22:26:03,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 22:26:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:26:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 22:26:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=607, Unknown=17, NotChecked=0, Total=756 [2022-12-13 22:26:03,187 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 15 states have internal predecessors, (33), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:26:24,510 WARN L233 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 39 DAG size of output: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:26:39,399 WARN L233 SmtUtils]: Spent 12.27s on a formula simplification. DAG size of input: 46 DAG size of output: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:26:46,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:00,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:34,174 WARN L233 SmtUtils]: Spent 12.36s on a formula simplification. DAG size of input: 49 DAG size of output: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:27:36,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:37,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:39,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:52,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:27:54,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:28:33,153 WARN L233 SmtUtils]: Spent 15.02s on a formula simplification. DAG size of input: 42 DAG size of output: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:28:35,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:28:37,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:28:39,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:28:49,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:28:58,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:08,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:17,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:28,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:41,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:55,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:29:58,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:30:00,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:30:47,097 WARN L233 SmtUtils]: Spent 30.25s on a formula simplification. DAG size of input: 59 DAG size of output: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:30:49,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:30:51,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:30:53,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:35,427 WARN L233 SmtUtils]: Spent 17.04s on a formula simplification. DAG size of input: 47 DAG size of output: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:31:37,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:39,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:41,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:44,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:47,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:48,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:53,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:54,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:57,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:31:59,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:01,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:03,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:05,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:21,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:22,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:25,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:28,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:30,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:32,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:34,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:36,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:38,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:40,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:42,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:44,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:46,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:48,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:32:52,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:39,011 WARN L233 SmtUtils]: Spent 18.14s on a formula simplification. DAG size of input: 51 DAG size of output: 41 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:33:41,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:43,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:45,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:48,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:49,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:50,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:51,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:56,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:33:58,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:34:16,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:34:17,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:34:20,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:01,377 WARN L233 SmtUtils]: Spent 23.09s on a formula simplification. DAG size of input: 51 DAG size of output: 41 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 22:35:03,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:05,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:07,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:08,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:10,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 22:35:11,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:35:11,124 INFO L93 Difference]: Finished difference Result 70 states and 87 transitions. [2022-12-13 22:35:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 22:35:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 15 states have internal predecessors, (33), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 35 [2022-12-13 22:35:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:35:11,143 INFO L225 Difference]: With dead ends: 70 [2022-12-13 22:35:11,143 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 22:35:11,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 505.3s TimeCoverageRelationStatistics Valid=546, Invalid=2010, Unknown=96, NotChecked=0, Total=2652 [2022-12-13 22:35:11,145 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 208 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 54 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 150.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:35:11,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 108 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 322 Invalid, 50 Unknown, 0 Unchecked, 151.5s Time] [2022-12-13 22:35:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 22:35:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 22:35:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:35:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 22:35:11,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-12-13 22:35:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:35:11,147 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 22:35:11,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 15 states have internal predecessors, (33), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 22:35:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 22:35:11,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 22:35:11,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 22:35:11,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-13 22:35:11,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 22:35:11,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3182ea54-006f-43f8-bf9e-4606f7ed6d68/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:35:11,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 22:37:41,081 WARN L233 SmtUtils]: Spent 2.49m on a formula simplification. DAG size of input: 71 DAG size of output: 48 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-12-13 22:38:25,764 WARN L233 SmtUtils]: Spent 44.68s on a formula simplification. DAG size of input: 61 DAG size of output: 40 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter)