./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3aeb3660abc12681d399409beb822860523a2c51916acdd5ef18cacbb868dcc3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:49,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:50,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:27:50,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:50,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:50,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:50,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:50,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:50,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:50,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:50,108 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:50,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:50,109 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:50,111 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:50,112 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:50,112 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:50,112 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:50,113 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:50,113 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:50,114 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:50,114 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:50,115 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:50,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:50,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:50,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:50,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:50,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:50,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:50,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:50,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:50,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:50,119 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:50,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:50,119 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:50,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:50,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:50,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:50,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:50,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:50,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:50,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:50,121 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:50,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:50,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:50,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:50,122 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:50,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:50,122 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aeb3660abc12681d399409beb822860523a2c51916acdd5ef18cacbb868dcc3 [2023-11-23 21:27:50,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:50,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:50,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:50,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:50,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:50,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i [2023-11-23 21:27:53,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:54,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:54,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i [2023-11-23 21:27:54,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/960a6862b/d52dc3dbdd7d4001b1cd4f9f6cbcca23/FLAGa1c9f84d8 [2023-11-23 21:27:54,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/960a6862b/d52dc3dbdd7d4001b1cd4f9f6cbcca23 [2023-11-23 21:27:54,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:54,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:54,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:54,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:54,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:54,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b96a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54, skipping insertion in model container [2023-11-23 21:27:54,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,281 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:54,466 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i[915,928] [2023-11-23 21:27:54,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:54,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:54,530 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i[915,928] [2023-11-23 21:27:54,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:54,562 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:54,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54 WrapperNode [2023-11-23 21:27:54,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:54,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:54,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:54,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:54,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,605 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2023-11-23 21:27:54,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:54,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:54,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:54,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:54,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:54,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:54,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:54,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:54,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:54,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:54,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:54,828 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:54,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:55,030 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:55,133 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:55,134 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:55,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:55 BoogieIcfgContainer [2023-11-23 21:27:55,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:55,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:55,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:55,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:55,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:54" (1/3) ... [2023-11-23 21:27:55,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58269fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:55, skipping insertion in model container [2023-11-23 21:27:55,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (2/3) ... [2023-11-23 21:27:55,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58269fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:55, skipping insertion in model container [2023-11-23 21:27:55,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:55" (3/3) ... [2023-11-23 21:27:55,172 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-30.i [2023-11-23 21:27:55,194 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:55,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:55,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:55,286 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e72c678, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:55,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:27:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:27:55,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:55,302 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:55,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:55,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:55,310 INFO L85 PathProgramCache]: Analyzing trace with hash -392285108, now seen corresponding path program 1 times [2023-11-23 21:27:55,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:55,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566831564] [2023-11-23 21:27:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:55,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:27:55,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699828803] [2023-11-23 21:27:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:55,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:55,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:55,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:27:55,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:27:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:55,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:27:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:55,770 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:27:55,773 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:27:55,775 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:55,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:56,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:56,007 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:27:56,010 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:56,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:56 BoogieIcfgContainer [2023-11-23 21:27:56,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:56,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:56,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:56,052 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:56,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:55" (3/4) ... [2023-11-23 21:27:56,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:27:56,056 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:56,058 INFO L158 Benchmark]: Toolchain (without parser) took 1814.25ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 73.7MB in the beginning and 106.8MB in the end (delta: -33.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:56,058 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 85.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:56,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.51ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 62.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:27:56,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.82ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 60.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:56,061 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 119.5MB. Free memory was 60.4MB in the beginning and 59.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:56,062 INFO L158 Benchmark]: RCFGBuilder took 498.77ms. Allocated memory is still 119.5MB. Free memory was 59.1MB in the beginning and 43.2MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:27:56,062 INFO L158 Benchmark]: TraceAbstraction took 912.07ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 42.7MB in the beginning and 106.8MB in the end (delta: -64.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:56,063 INFO L158 Benchmark]: Witness Printer took 5.16ms. Allocated memory is still 155.2MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:56,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 85.8MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.51ms. Allocated memory is still 119.5MB. Free memory was 73.4MB in the beginning and 62.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.82ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 60.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 119.5MB. Free memory was 60.4MB in the beginning and 59.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.77ms. Allocated memory is still 119.5MB. Free memory was 59.1MB in the beginning and 43.2MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 912.07ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 42.7MB in the beginning and 106.8MB in the end (delta: -64.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.16ms. Allocated memory is still 155.2MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 37, overapproximation of someBinaryFLOATComparisonOperation at line 62. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.375; [L23] double var_1_2 = 16.5; [L24] unsigned short int var_1_3 = 64; [L25] unsigned long int var_1_4 = 128; [L26] unsigned long int var_1_5 = 256; [L27] unsigned short int var_1_6 = 32; [L28] unsigned short int var_1_7 = 16; [L29] double var_1_8 = 1.5; [L30] float var_1_9 = 2.25; [L66] isInitial = 1 [L67] FCALL initially() [L68] COND TRUE 1 [L69] FCALL updateLastVariables() [L70] CALL updateVariables() [L43] var_1_2 = __VERIFIER_nondet_double() [L44] CALL assume_abort_if_not((var_1_2 >= -922337.2036854765600e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_4=128, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not((var_1_2 >= -922337.2036854765600e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854765600e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_4=128, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L45] var_1_4 = __VERIFIER_nondet_ulong() [L46] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L47] CALL assume_abort_if_not(var_1_4 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_4 <= 4294967295) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=256, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L48] var_1_5 = __VERIFIER_nondet_ulong() [L49] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L50] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L51] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=32, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L52] var_1_6 = __VERIFIER_nondet_ushort() [L53] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L54] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L54] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_7=16, var_1_8=3/2, var_1_9=9/4] [L55] var_1_7 = __VERIFIER_nondet_ushort() [L56] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_8=3/2, var_1_9=9/4] [L57] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_7=0, var_1_8=3/2, var_1_9=9/4] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=3/8, var_1_3=64, var_1_5=2, var_1_6=0, var_1_7=0, var_1_8=3/2, var_1_9=9/4] [L70] RET updateVariables() [L71] CALL step() [L34] var_1_1 = var_1_2 [L35] var_1_8 = var_1_2 [L36] var_1_9 = var_1_2 [L37] unsigned char stepLocal_0 = var_1_9 < var_1_2; [L38] COND FALSE !((32u < (var_1_4 / var_1_5)) && stepLocal_0) [L71] RET step() [L72] CALL, EXPR property() [L62-L63] return (((var_1_1 == ((double) var_1_2)) && (((32u < (var_1_4 / var_1_5)) && (var_1_9 < var_1_2)) ? (var_1_3 == ((unsigned short int) (var_1_6 + var_1_7))) : 1)) && (var_1_8 == ((double) var_1_2))) && (var_1_9 == ((float) var_1_2)) ; [L72] RET, EXPR property() [L72] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=2, var_1_2=2, var_1_3=64, var_1_4=66, var_1_5=2, var_1_6=0, var_1_7=0, var_1_8=2, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=2, var_1_2=2, var_1_3=64, var_1_4=66, var_1_5=2, var_1_6=0, var_1_7=0, var_1_8=2, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:27:56,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3aeb3660abc12681d399409beb822860523a2c51916acdd5ef18cacbb868dcc3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:58,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:59,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:27:59,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:59,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:59,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:59,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:59,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:59,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:59,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:59,062 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:59,063 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:59,063 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:59,064 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:59,064 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:59,065 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:59,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:59,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:59,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:59,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:59,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:59,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:59,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:59,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:59,078 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:27:59,078 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:27:59,079 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:27:59,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:59,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:59,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:59,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:59,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:27:59,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:59,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:59,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:59,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:59,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:59,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:59,084 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:27:59,085 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:59,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:59,086 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:59,086 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:59,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:59,087 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aeb3660abc12681d399409beb822860523a2c51916acdd5ef18cacbb868dcc3 [2023-11-23 21:27:59,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:59,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:59,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:59,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:59,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:59,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i [2023-11-23 21:28:03,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:03,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:03,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i [2023-11-23 21:28:03,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/54d2695a1/424bf08416cf4ef39e56c4ccb48e56bf/FLAG7d1fc7438 [2023-11-23 21:28:03,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/data/54d2695a1/424bf08416cf4ef39e56c4ccb48e56bf [2023-11-23 21:28:03,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:03,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:03,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:03,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:03,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:03,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d853f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03, skipping insertion in model container [2023-11-23 21:28:03,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,413 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:03,633 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i[915,928] [2023-11-23 21:28:03,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:03,711 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:03,735 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-30.i[915,928] [2023-11-23 21:28:03,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:03,795 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:03,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03 WrapperNode [2023-11-23 21:28:03,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:03,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:03,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:03,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:03,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,875 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2023-11-23 21:28:03,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:03,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:03,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:03,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:03,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:03,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:03,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:03,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:03,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (1/1) ... [2023-11-23 21:28:03,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:03,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:03,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:04,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:28:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:28:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:28:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:04,171 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:04,177 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:05,434 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:05,492 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:05,493 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:28:05,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:05 BoogieIcfgContainer [2023-11-23 21:28:05,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:05,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:05,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:05,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:05,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:03" (1/3) ... [2023-11-23 21:28:05,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6574fc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:05, skipping insertion in model container [2023-11-23 21:28:05,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:03" (2/3) ... [2023-11-23 21:28:05,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6574fc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:05, skipping insertion in model container [2023-11-23 21:28:05,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:05" (3/3) ... [2023-11-23 21:28:05,509 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-30.i [2023-11-23 21:28:05,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:05,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:05,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:05,613 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c2dd98e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:05,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:28:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:28:05,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:05,636 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:05,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:05,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash -983614, now seen corresponding path program 1 times [2023-11-23 21:28:05,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:28:05,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335257538] [2023-11-23 21:28:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:05,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:28:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:28:05,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:28:05,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25aefc58-80de-4d28-9143-4836a5c7be8d/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:28:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:05,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:28:05,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:45,647 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 21:28:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:28:49,429 INFO L327 TraceCheckSpWp]: Computing backward predicates...