./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 7b3c7435982770834cfc131463d786948517df0041a2df466feb43cba8dfce9a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:01,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:01,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:35:01,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:01,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:01,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:01,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:01,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:01,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:01,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:01,563 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:01,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:01,565 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:01,566 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:01,567 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:01,567 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:01,568 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:01,568 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:01,568 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:01,569 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:01,569 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:01,570 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:01,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:01,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:01,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:01,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:01,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:01,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:01,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:01,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:01,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:01,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:01,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:01,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:01,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:01,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:01,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:01,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:01,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:01,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:01,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:01,578 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:01,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:01,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:01,579 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:01,580 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:01,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:01,580 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b3c7435982770834cfc131463d786948517df0041a2df466feb43cba8dfce9a [2023-11-23 20:35:01,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:01,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:01,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:01,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:01,946 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:01,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:05,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:05,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:05,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:05,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/061201b2c/214e62c03949497386cafa12d919fc5b/FLAG27c5e2136 [2023-11-23 20:35:05,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/061201b2c/214e62c03949497386cafa12d919fc5b [2023-11-23 20:35:05,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:05,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:05,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:05,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:05,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:05,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1248375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05, skipping insertion in model container [2023-11-23 20:35:05,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:05,681 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i[915,928] [2023-11-23 20:35:05,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:05,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:05,751 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i[915,928] [2023-11-23 20:35:05,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:05,806 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:05,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05 WrapperNode [2023-11-23 20:35:05,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:05,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:05,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:05,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:05,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,849 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-23 20:35:05,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:05,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:05,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:05,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:05,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:05,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:05,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:05,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:05,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (1/1) ... [2023-11-23 20:35:05,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:05,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:05,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:05,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:05,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:06,040 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:06,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:06,331 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:06,447 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:06,448 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:06,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:06 BoogieIcfgContainer [2023-11-23 20:35:06,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:06,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:06,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:06,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:06,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:05" (1/3) ... [2023-11-23 20:35:06,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2620fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:06, skipping insertion in model container [2023-11-23 20:35:06,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:05" (2/3) ... [2023-11-23 20:35:06,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2620fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:06, skipping insertion in model container [2023-11-23 20:35:06,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:06" (3/3) ... [2023-11-23 20:35:06,469 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:06,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:06,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:06,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:06,542 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;@6bd50869, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:06,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:35:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 20:35:06,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:06,556 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:06,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:06,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash -859091320, now seen corresponding path program 1 times [2023-11-23 20:35:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:06,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600460176] [2023-11-23 20:35:06,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:06,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:35:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:07,018 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:35:07,020 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:35:07,022 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:07,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:07,029 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:35:07,034 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:07,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:07 BoogieIcfgContainer [2023-11-23 20:35:07,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:07,102 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:07,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:07,102 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:07,106 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:06" (3/4) ... [2023-11-23 20:35:07,112 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:35:07,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:07,115 INFO L158 Benchmark]: Toolchain (without parser) took 1712.89ms. Allocated memory is still 138.4MB. Free memory was 94.5MB in the beginning and 52.3MB in the end (delta: 42.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-11-23 20:35:07,116 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:07,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.85ms. Allocated memory is still 138.4MB. Free memory was 93.7MB in the beginning and 103.4MB in the end (delta: -9.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:07,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.50ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:07,119 INFO L158 Benchmark]: Boogie Preprocessor took 47.68ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 100.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:07,124 INFO L158 Benchmark]: RCFGBuilder took 550.59ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 80.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 20:35:07,125 INFO L158 Benchmark]: TraceAbstraction took 648.16ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 53.2MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:35:07,126 INFO L158 Benchmark]: Witness Printer took 11.78ms. Allocated memory is still 138.4MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:07,132 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.85ms. Allocated memory is still 138.4MB. Free memory was 93.7MB in the beginning and 103.4MB in the end (delta: -9.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.50ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.68ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 100.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 550.59ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 80.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 648.16ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 53.2MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 11.78ms. Allocated memory is still 138.4MB. Free memory is still 53.2MB. 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 someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = -128; [L24] unsigned char var_1_3 = 1; [L25] signed char var_1_4 = -5; [L26] unsigned char var_1_5 = 16; [L27] unsigned char var_1_9 = 25; [L28] float var_1_10 = 2.5; [L29] signed char var_1_11 = 1; [L30] signed char var_1_12 = 4; [L31] float var_1_13 = 7.75; [L32] float var_1_14 = 64.75; [L33] float var_1_15 = 256.52; [L34] float var_1_16 = 3.25; [L91] isInitial = 1 [L92] FCALL initially() [L93] COND TRUE 1 [L94] FCALL updateLastVariables() [L95] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_4=-5, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_4=-5, var_1_5=16, var_1_9=25] [L62] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-5, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-5, var_1_5=16, var_1_9=25] [L63] var_1_4 = __VERIFIER_nondet_char() [L64] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=25] [L66] var_1_9 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16] [L68] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L69] var_1_11 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L71] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L72] var_1_12 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L74] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L77] var_1_14 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=0, var_1_12=0, var_1_1=32, var_1_2=-128, var_1_3=1, var_1_4=-126, var_1_5=16, var_1_9=254] [L95] RET updateVariables() [L96] CALL step() [L38] var_1_1 = (16 - 2) [L39] COND TRUE \read(var_1_3) [L40] var_1_2 = ((((-4) < 0 ) ? -(-4) : (-4))) [L44] COND TRUE var_1_4 < ((16 + var_1_11) - var_1_12) [L45] COND TRUE \read(var_1_3) [L46] var_1_10 = ((var_1_13 + 50.6f) + var_1_14) [L53] COND TRUE (var_1_10 * var_1_10) > var_1_10 [L54] var_1_5 = (((((25) < (5)) ? (25) : (5))) + 10) [L96] RET step() [L97] CALL, EXPR property() [L87-L88] return (((var_1_1 == ((signed char) (16 - 2))) && (var_1_3 ? (var_1_2 == ((signed char) ((((-4) < 0 ) ? -(-4) : (-4))))) : (var_1_2 == ((signed char) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))))) && (((var_1_10 * var_1_10) > var_1_10) ? (var_1_5 == ((unsigned char) (((((25) < (5)) ? (25) : (5))) + 10))) : (var_1_5 == ((unsigned char) var_1_9)))) && ((var_1_4 < ((16 + var_1_11) - var_1_12)) ? (var_1_3 ? (var_1_10 == ((float) ((var_1_13 + 50.6f) + var_1_14))) : (var_1_10 == ((float) (var_1_15 - var_1_16)))) : (var_1_10 == ((float) var_1_14))) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=261, var_1_11=0, var_1_12=0, var_1_14=261, var_1_1=14, var_1_2=4, var_1_3=1, var_1_4=-126, var_1_5=15, var_1_9=254] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=261, var_1_11=0, var_1_12=0, var_1_14=261, var_1_1=14, var_1_2=4, var_1_3=1, var_1_4=-126, var_1_5=15, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 14, 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=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 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 20:35:07,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 7b3c7435982770834cfc131463d786948517df0041a2df466feb43cba8dfce9a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:09,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:10,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:35:10,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:10,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:10,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:10,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:10,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:10,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:10,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:10,113 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:10,113 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:10,113 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:10,115 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:10,116 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:10,116 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:10,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:10,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:10,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:10,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:10,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:10,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:10,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:10,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:10,120 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:35:10,121 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:35:10,121 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:35:10,122 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:10,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:10,122 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:10,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:10,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:35:10,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:10,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:10,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:10,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:10,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:10,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:10,126 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:35:10,127 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:10,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:10,128 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:10,128 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:10,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:10,129 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b3c7435982770834cfc131463d786948517df0041a2df466feb43cba8dfce9a [2023-11-23 20:35:10,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:10,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:10,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:10,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:10,550 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:10,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:13,844 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:14,150 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:14,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:14,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/6252eab85/34398041f2c449408ffb0024b616d0e7/FLAGd24b00b6c [2023-11-23 20:35:14,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/data/6252eab85/34398041f2c449408ffb0024b616d0e7 [2023-11-23 20:35:14,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:14,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:14,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:14,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:14,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:14,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb9b66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14, skipping insertion in model container [2023-11-23 20:35:14,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:14,374 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i[915,928] [2023-11-23 20:35:14,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:14,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:14,499 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_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-62.i[915,928] [2023-11-23 20:35:14,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:14,565 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:14,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14 WrapperNode [2023-11-23 20:35:14,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:14,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:14,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:14,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:14,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,647 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2023-11-23 20:35:14,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:14,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:14,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:14,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:14,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:14,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:14,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:14,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:14,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (1/1) ... [2023-11-23 20:35:14,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:14,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:14,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:35:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:14,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:14,985 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:14,988 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:17,642 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:17,715 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:17,715 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:17,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:17 BoogieIcfgContainer [2023-11-23 20:35:17,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:17,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:17,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:17,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:17,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:14" (1/3) ... [2023-11-23 20:35:17,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac53b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:17, skipping insertion in model container [2023-11-23 20:35:17,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:14" (2/3) ... [2023-11-23 20:35:17,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac53b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:17, skipping insertion in model container [2023-11-23 20:35:17,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:17" (3/3) ... [2023-11-23 20:35:17,744 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-62.i [2023-11-23 20:35:17,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:17,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:17,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:17,843 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;@6b6cfacf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:17,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:17,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:35:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 20:35:17,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:17,861 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:17,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:17,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:17,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2105262673, now seen corresponding path program 1 times [2023-11-23 20:35:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:17,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468586044] [2023-11-23 20:35:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:17,889 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 20:35:17,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:17,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 20:35:17,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 20:35:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:18,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:35:18,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-11-23 20:35:18,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:18,325 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468586044] [2023-11-23 20:35:18,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468586044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:18,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:18,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:18,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645576887] [2023-11-23 20:35:18,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:18,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:35:18,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:18,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:35:18,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:18,379 INFO L87 Difference]: Start difference. First operand has 40 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:35:19,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:19,701 INFO L93 Difference]: Finished difference Result 77 states and 132 transitions. [2023-11-23 20:35:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:35:19,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2023-11-23 20:35:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:19,726 INFO L225 Difference]: With dead ends: 77 [2023-11-23 20:35:19,727 INFO L226 Difference]: Without dead ends: 38 [2023-11-23 20:35:19,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:19,734 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:19,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 20:35:19,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-23 20:35:19,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-23 20:35:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:35:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 55 transitions. [2023-11-23 20:35:19,787 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 55 transitions. Word has length 87 [2023-11-23 20:35:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:19,788 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 55 transitions. [2023-11-23 20:35:19,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:35:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2023-11-23 20:35:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 20:35:19,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:19,797 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:19,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:20,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 [2023-11-23 20:35:20,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:20,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash -249509111, now seen corresponding path program 1 times [2023-11-23 20:35:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353235004] [2023-11-23 20:35:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:20,007 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 20:35:20,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:20,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 20:35:20,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea63366f-3ad2-47d3-a8f6-41ceda03b34b/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 (3)] Waiting until timeout for monitored process [2023-11-23 20:35:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:20,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 20:35:20,370 INFO L285 TraceCheckSpWp]: Computing forward predicates...