./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh --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 bc33678a96b4cfd3f62b1c8cf60c6fd0186557133d9529f189083aa906b84f07 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:39:57,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:39:57,622 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:39:57,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:39:57,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:39:57,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:39:57,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:39:57,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:39:57,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:39:57,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:39:57,656 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:39:57,657 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:39:57,657 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:39:57,658 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:39:57,658 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:39:57,659 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:39:57,660 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:39:57,660 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:39:57,661 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:39:57,661 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:39:57,662 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:39:57,663 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:39:57,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:39:57,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:39:57,665 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:39:57,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:39:57,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:39:57,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:39:57,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:39:57,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:39:57,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:39:57,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:39:57,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:39:57,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:39:57,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:39:57,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:39:57,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:39:57,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:57,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:39:57,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:39:57,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:39:57,671 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:39:57,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:39:57,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:39:57,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:39:57,671 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:39:57,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:39:57,672 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc33678a96b4cfd3f62b1c8cf60c6fd0186557133d9529f189083aa906b84f07 [2023-12-02 15:39:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:39:57,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:39:57,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:39:57,982 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:39:57,982 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:39:57,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:00,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:40:01,049 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:40:01,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:01,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/5d2a6b345/943d4412f87547798609699f09ef4e5c/FLAG74bc9a989 [2023-12-02 15:40:01,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/5d2a6b345/943d4412f87547798609699f09ef4e5c [2023-12-02 15:40:01,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:40:01,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:40:01,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:40:01,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:40:01,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:40:01,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b8fba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01, skipping insertion in model container [2023-12-02 15:40:01,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,135 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:40:01,313 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i[915,928] [2023-12-02 15:40:01,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:40:01,381 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:40:01,397 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i[915,928] [2023-12-02 15:40:01,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:40:01,441 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:40:01,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01 WrapperNode [2023-12-02 15:40:01,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:40:01,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:40:01,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:40:01,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:40:01,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,493 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2023-12-02 15:40:01,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:40:01,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:40:01,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:40:01,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:40:01,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:40:01,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:40:01,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:40:01,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:40:01,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (1/1) ... [2023-12-02 15:40:01,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:40:01,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:40:01,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:40:01,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:40:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:40:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:40:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:40:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:40:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:40:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:40:01,673 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:40:01,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:40:01,908 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:40:02,035 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:40:02,035 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:40:02,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:02 BoogieIcfgContainer [2023-12-02 15:40:02,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:40:02,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:40:02,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:40:02,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:40:02,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:40:01" (1/3) ... [2023-12-02 15:40:02,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ca0014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:02, skipping insertion in model container [2023-12-02 15:40:02,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:01" (2/3) ... [2023-12-02 15:40:02,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ca0014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:02, skipping insertion in model container [2023-12-02 15:40:02,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:02" (3/3) ... [2023-12-02 15:40:02,048 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:02,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:40:02,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:40:02,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:40:02,127 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;@270c1552, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:40:02,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:40:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:40:02,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 15:40:02,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:02,144 INFO L195 NwaCegarLoop]: trace histogram [18, 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:02,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:02,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash 216929368, now seen corresponding path program 1 times [2023-12-02 15:40:02,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:40:02,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631616879] [2023-12-02 15:40:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:02,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:40:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:40:02,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:40:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:40:02,580 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:40:02,583 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:40:02,584 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:40:02,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:40:02,592 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:40:02,597 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:40:02,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:40:02 BoogieIcfgContainer [2023-12-02 15:40:02,666 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:40:02,667 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:40:02,667 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:40:02,667 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:40:02,668 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:02" (3/4) ... [2023-12-02 15:40:02,670 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:40:02,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:40:02,673 INFO L158 Benchmark]: Toolchain (without parser) took 1585.13ms. Allocated memory is still 176.2MB. Free memory was 138.0MB in the beginning and 129.7MB in the end (delta: 8.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-12-02 15:40:02,674 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:40:02,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.35ms. Allocated memory is still 176.2MB. Free memory was 138.0MB in the beginning and 126.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:40:02,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.78ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:40:02,676 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 122.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:40:02,677 INFO L158 Benchmark]: RCFGBuilder took 507.68ms. Allocated memory is still 176.2MB. Free memory was 122.3MB in the beginning and 98.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 15:40:02,677 INFO L158 Benchmark]: TraceAbstraction took 625.46ms. Allocated memory is still 176.2MB. Free memory was 98.1MB in the beginning and 129.7MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:40:02,678 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 129.7MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:40:02,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.35ms. Allocated memory is still 176.2MB. Free memory was 138.0MB in the beginning and 126.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.78ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.92ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 122.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.68ms. Allocated memory is still 176.2MB. Free memory was 122.3MB in the beginning and 98.7MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 625.46ms. Allocated memory is still 176.2MB. Free memory was 98.1MB in the beginning and 129.7MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 129.7MB in the end (delta: 2.7kB). 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 101, overapproximation of someUnaryDOUBLEoperation at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 4.8; [L23] unsigned long int var_1_2 = 2; [L24] unsigned long int var_1_3 = 5; [L25] float var_1_4 = 255.1; [L26] float var_1_5 = -0.6; [L27] signed short int var_1_6 = -10; [L28] unsigned char var_1_7 = 0; [L29] unsigned char var_1_8 = 1; [L30] signed char var_1_11 = -2; [L31] signed char var_1_12 = 10; [L32] signed char var_1_13 = 5; [L33] float var_1_14 = 499.375; [L34] float var_1_15 = 0.0; [L35] float var_1_16 = 63.2; [L36] float var_1_17 = 0.0; [L37] float var_1_18 = 15.75; [L38] float var_1_19 = 5.75; [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_ulong() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L69] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_3=5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_4=2551/10, var_1_6=-10, var_1_7=0, var_1_8=1] [L73] var_1_4 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L75] var_1_5 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L77] var_1_7 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_8=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_8=1] [L79] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L80] var_1_8 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0] [L82] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L83] var_1_12 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L85] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=5, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L86] var_1_13 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L88] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_15=0, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L89] var_1_15 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_15 >= 4611686.018427382800e+12F && 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_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_15 >= 4611686.018427382800e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_16=316/5, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L91] var_1_16 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_17=0, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L93] var_1_17 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_17 >= 4611686.018427382800e+12F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_17 >= 4611686.018427382800e+12F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_18=63/4, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L95] var_1_18 = __VERIFIER_nondet_float() [L96] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_19=23/4, var_1_1=24/5, var_1_6=-10, var_1_7=0, var_1_8=1] [L109] RET updateVariables() [L110] CALL step() [L42] unsigned long int stepLocal_0 = var_1_2; [L43] COND TRUE stepLocal_0 >= (~ var_1_3) [L44] var_1_1 = (var_1_4 + var_1_5) [L46] var_1_11 = (-32 + (var_1_12 + ((((10) < (var_1_13)) ? (10) : (var_1_13))))) [L47] signed char stepLocal_1 = var_1_12; [L48] COND FALSE !(stepLocal_1 != var_1_3) [L53] var_1_14 = var_1_18 [L55] var_1_19 = var_1_5 [L56] COND FALSE !(\read(var_1_7)) [L63] var_1_6 = var_1_11 [L110] RET step() [L111] CALL, EXPR property() [L101-L102] return (((((var_1_2 >= (~ var_1_3)) ? (var_1_1 == ((float) (var_1_4 + var_1_5))) : 1) && (var_1_7 ? (var_1_8 ? (var_1_6 == ((signed short int) (var_1_11 + var_1_11))) : (var_1_6 == ((signed short int) (var_1_11 + var_1_11)))) : (var_1_6 == ((signed short int) var_1_11)))) && (var_1_11 == ((signed char) (-32 + (var_1_12 + ((((10) < (var_1_13)) ? (10) : (var_1_13)))))))) && ((var_1_12 != var_1_3) ? (var_1_7 ? (var_1_14 == ((float) ((var_1_15 - var_1_16) - (var_1_17 - var_1_18)))) : 1) : (var_1_14 == ((float) var_1_18)))) && (var_1_19 == ((float) var_1_5)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=4, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_18=3995/8, var_1_19=4294967327, var_1_1=24/5, var_1_2=4294967269, var_1_3=26, var_1_5=4294967327, var_1_6=4, var_1_7=0, var_1_8=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_11=4, var_1_12=26, var_1_13=10, var_1_14=3995/8, var_1_18=3995/8, var_1_19=4294967327, var_1_1=24/5, var_1_2=4294967269, var_1_3=26, var_1_5=4294967327, var_1_6=4, var_1_7=0, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 18, 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=39occurred 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, 70 NumberOfCodeBlocks, 70 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 [2023-12-02 15:40:02,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh --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 bc33678a96b4cfd3f62b1c8cf60c6fd0186557133d9529f189083aa906b84f07 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:40:04,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:40:04,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:40:04,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:40:04,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:40:04,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:40:04,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:40:04,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:40:04,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:40:04,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:40:04,947 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:40:04,948 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:40:04,948 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:40:04,949 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:40:04,949 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:40:04,950 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:40:04,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:40:04,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:40:04,952 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:40:04,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:40:04,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:40:04,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:40:04,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:40:04,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:40:04,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:40:04,957 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:40:04,957 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:40:04,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:40:04,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:40:04,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:40:04,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:40:04,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:40:04,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:40:04,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:40:04,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:40:04,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:40:04,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:40:04,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:40:04,961 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:40:04,962 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:40:04,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:40:04,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:40:04,963 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:40:04,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:40:04,963 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc33678a96b4cfd3f62b1c8cf60c6fd0186557133d9529f189083aa906b84f07 [2023-12-02 15:40:05,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:40:05,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:40:05,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:40:05,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:40:05,316 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:40:05,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:08,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:40:08,423 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:40:08,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:08,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/6a4d30a5b/d426d20352bb441a88fefc6e690b6266/FLAGb1ae2bd1c [2023-12-02 15:40:08,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/data/6a4d30a5b/d426d20352bb441a88fefc6e690b6266 [2023-12-02 15:40:08,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:40:08,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:40:08,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:40:08,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:40:08,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:40:08,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1987b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08, skipping insertion in model container [2023-12-02 15:40:08,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:40:08,639 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i[915,928] [2023-12-02 15:40:08,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:40:08,706 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:40:08,719 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_53ad5573-1e86-409e-bb76-dc6867e22b2f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-35.i[915,928] [2023-12-02 15:40:08,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:40:08,767 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:40:08,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08 WrapperNode [2023-12-02 15:40:08,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:40:08,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:40:08,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:40:08,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:40:08,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,822 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2023-12-02 15:40:08,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:40:08,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:40:08,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:40:08,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:40:08,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:40:08,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:40:08,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:40:08,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:40:08,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (1/1) ... [2023-12-02 15:40:08,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:40:08,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:40:08,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:40:08,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:40:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:40:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:40:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:40:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:40:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:40:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:40:09,030 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:40:09,033 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:40:10,460 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:40:10,512 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:40:10,513 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:40:10,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:10 BoogieIcfgContainer [2023-12-02 15:40:10,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:40:10,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:40:10,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:40:10,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:40:10,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:40:08" (1/3) ... [2023-12-02 15:40:10,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d290bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:10, skipping insertion in model container [2023-12-02 15:40:10,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:08" (2/3) ... [2023-12-02 15:40:10,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d290bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:10, skipping insertion in model container [2023-12-02 15:40:10,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:10" (3/3) ... [2023-12-02 15:40:10,523 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-35.i [2023-12-02 15:40:10,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:40:10,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:40:10,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:40:10,593 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;@35ed0219, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:40:10,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:40:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:40:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 15:40:10,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:10,611 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:10,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:10,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:10,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1483062732, now seen corresponding path program 1 times [2023-12-02 15:40:10,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:40:10,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196429090] [2023-12-02 15:40:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:10,630 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 [2023-12-02 15:40:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:40:10,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:40:10,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:40:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:40:11,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:40:11,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:40:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-12-02 15:40:11,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:40:11,053 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:40:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196429090] [2023-12-02 15:40:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196429090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:40:11,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:40:11,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:40:11,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030253619] [2023-12-02 15:40:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:40:11,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:40:11,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:40:11,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:40:11,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:40:11,095 INFO L87 Difference]: Start difference. First operand has 50 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:40:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:40:12,086 INFO L93 Difference]: Finished difference Result 97 states and 166 transitions. [2023-12-02 15:40:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:40:12,102 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2023-12-02 15:40:12,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:40:12,108 INFO L225 Difference]: With dead ends: 97 [2023-12-02 15:40:12,108 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 15:40:12,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:40:12,115 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:40:12,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 15:40:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 15:40:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 15:40:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 15:40:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-12-02 15:40:12,162 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 112 [2023-12-02 15:40:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:40:12,162 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-12-02 15:40:12,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:40:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-12-02 15:40:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 15:40:12,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:12,168 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:12,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:40:12,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:40:12,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:12,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash 21064384, now seen corresponding path program 1 times [2023-12-02 15:40:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:40:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833773419] [2023-12-02 15:40:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:12,372 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 [2023-12-02 15:40:12,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:40:12,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:40:12,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:40:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:40:12,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 15:40:12,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 287 proven. 66 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-02 15:44:21,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:46:21,665 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse23 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse26 (= .cse23 c_~var_1_3~0))) (let ((.cse25 ((_ sign_extend 16) c_~var_1_6~0)) (.cse24 ((_ sign_extend 24) c_~var_1_11~0)) (.cse10 (not .cse26)) (.cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0)))))) (let ((.cse9 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse21 (or .cse10 .cse11)) (.cse22 (or .cse10 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))) (.cse4 (= .cse25 ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse24))))) (.cse20 (= c_~var_1_7~0 (_ bv0 8))) (.cse3 (or .cse26 .cse11)) (.cse6 (or (= (bvnot c_~var_1_3~0) (_ bv0 32)) .cse26 .cse11)) (.cse2 (= .cse25 ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0)))) (.cse19 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse23))) .cse24)) (.cse1 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse23 .cse19 (_ bv4294967264 32)))) .cse24)) (.cse12 (not .cse2)) (.cse13 (or .cse20 (and .cse3 .cse6))) (.cse14 (or .cse20 .cse4)) (.cse15 (or (not .cse4) (and .cse21 .cse22 (or .cse20 (and .cse10 .cse11))))) (.cse16 (or .cse4 (and .cse20 .cse21 .cse22))) (.cse7 (not .cse20)) (.cse8 (not .cse9)) (.cse5 (bvslt (_ bv10 32) .cse19))) (and (or (not .cse0) (and (or .cse1 (and (or .cse2 (and (or (and .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse9 (and .cse4 .cse5 .cse10 .cse11 .cse7)))) (or .cse12 (and (or .cse8 (and .cse13 .cse5 .cse14)) (or .cse9 (and .cse5 .cse15 .cse16)))))) (or (and (or .cse12 (and (or .cse9 (and .cse15 .cse16)) (or (and .cse13 .cse14) .cse8))) (or .cse2 (and (or (and .cse3 .cse4 .cse6 .cse7) .cse8) (or .cse9 (and .cse4 .cse10 .cse11 .cse7))))) (not .cse1)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (let ((.cse17 (fp.eq c_~var_1_19~0 c_~var_1_5~0))) (or (and .cse0 .cse17) (let ((.cse18 (not .cse5))) (and .cse1 .cse17 (or .cse12 (and (or (and .cse13 .cse14 .cse18) .cse8) (or (and .cse18 .cse15 .cse16) .cse9))) (or .cse2 (and (or .cse9 (and .cse4 .cse10 .cse11 .cse18 .cse7)) (or (and .cse3 .cse4 .cse6 .cse18 .cse7) .cse8))))))))))))) is different from true [2023-12-02 15:46:58,955 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ sign_extend 24) c_~var_1_11~0)) (.cse7 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse1 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse2 (let ((.cse10 (let ((.cse12 (not (= .cse7 c_~var_1_3~0)))) (and (or .cse12 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (or .cse12 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))))) (.cse11 (= ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse8))) ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0))))) (and (or .cse10 (not .cse11)) (or .cse10 .cse11)))) (.cse9 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse3 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse9 (_ bv4294967264 32)))) .cse8)) (.cse5 (or .cse1 .cse2)) (.cse4 (bvslt (_ bv10 32) .cse9)) (.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse7))) .cse8))) (and (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (or (not .cse0) (and (or .cse1 .cse2 (not .cse3)) (or .cse3 (and .cse4 .cse5)))) (let ((.cse6 (fp.eq c_~var_1_19~0 c_~var_1_5~0))) (or (and .cse3 .cse6 .cse5 (not .cse4)) (and .cse0 .cse6))))))) is different from true [2023-12-02 15:47:36,524 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ sign_extend 24) c_~var_1_11~0)) (.cse7 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse4 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse5 (let ((.cse9 (let ((.cse11 (not (= .cse7 c_~var_1_3~0)))) (and (or .cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (or .cse11 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))))) (.cse10 (= ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse8))) ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0))))) (and (or .cse9 (not .cse10)) (or .cse9 .cse10)))) (.cse6 ((_ sign_extend 24) c_~var_1_13~0))) (let ((.cse0 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse7))) .cse8)) (.cse1 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse6 (_ bv4294967264 32)))) .cse8)) (.cse3 (bvslt (_ bv10 32) .cse6)) (.cse2 (or .cse4 .cse5))) (and (or .cse0 (and .cse1 .cse2 (not .cse3))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)) (or (not .cse0) (and (or .cse4 .cse5 (not .cse1)) (or .cse1 (and .cse3 .cse2)))))))) is different from true [2023-12-02 15:47:55,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:47:55,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833773419] [2023-12-02 15:47:55,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833773419] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:47:55,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [171847705] [2023-12-02 15:47:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:55,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:47:55,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:47:55,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:47:55,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53ad5573-1e86-409e-bb76-dc6867e22b2f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 15:47:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:56,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 15:47:56,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:50:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 287 proven. 66 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-12-02 15:50:40,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:54:49,075 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse40 ((_ sign_extend 24) c_~var_1_12~0))) (let ((.cse43 ((_ sign_extend 16) c_~var_1_6~0)) (.cse41 ((_ sign_extend 24) c_~var_1_11~0)) (.cse42 ((_ sign_extend 24) c_~var_1_13~0)) (.cse22 (= .cse40 c_~var_1_3~0))) (let ((.cse38 (bvuge c_~var_1_2~0 (bvnot c_~var_1_3~0))) (.cse14 (not .cse22)) (.cse15 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))) (.cse3 (fp.eq c_~var_1_14~0 c_~var_1_18~0)) (.cse18 (bvslt (_ bv10 32) .cse42)) (.cse26 (= c_~var_1_7~0 (_ bv0 8))) (.cse12 (= .cse43 ((_ sign_extend 16) ((_ extract 15 0) (bvmul (_ bv2 32) .cse41))))) (.cse10 (= .cse43 ((_ sign_extend 16) ((_ sign_extend 8) c_~var_1_11~0)))) (.cse19 (fp.eq c_~var_1_19~0 c_~var_1_5~0)) (.cse17 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse40 .cse42 (_ bv4294967264 32)))) .cse41)) (.cse39 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967274 32) .cse40))) .cse41))) (let ((.cse1 (not .cse39)) (.cse16 (not .cse17)) (.cse21 (and .cse39 .cse19)) (.cse2 (not .cse10)) (.cse7 (or .cse26 .cse12)) (.cse20 (not .cse18)) (.cse13 (not .cse26)) (.cse9 (not .cse3)) (.cse23 (not .cse12)) (.cse27 (and .cse14 .cse15)) (.cse6 (not .cse38)) (.cse24 (or .cse14 .cse15)) (.cse25 (or .cse14 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_17~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0) (fp.sub c_currentRoundingMode ~var_1_17~0 c_~var_1_18~0))))))) (.cse0 (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0)))) (and (or .cse0 (let ((.cse8 (or .cse26 .cse22 .cse15)) (.cse4 (or (and .cse26 .cse6 .cse24 .cse25) .cse12)) (.cse5 (or .cse23 (and .cse6 .cse24 .cse25 (or .cse26 .cse27)))) (.cse11 (or .cse22 .cse15))) (and (or .cse1 (and (or (and (or .cse2 (and (or .cse3 (and .cse4 .cse5)) (or (and .cse6 .cse7 .cse8) .cse9))) (or .cse10 (and (or (and .cse11 .cse6 .cse12 .cse13) .cse9) (or .cse3 (and .cse6 .cse12 .cse14 .cse15 .cse13))))) .cse16) (or .cse17 (and (or .cse10 (and (or (and .cse11 .cse6 .cse12 .cse18 .cse13) .cse9) (or (and .cse6 .cse12 .cse18 .cse14 .cse15 .cse13) .cse3))) (or .cse2 (and (or .cse3 (and .cse18 .cse4 .cse5)) (or (and .cse6 .cse18 .cse7 .cse8) .cse9))))))) (or (and .cse17 .cse19 (or .cse2 (and (or (and .cse6 .cse7 .cse20 .cse8) .cse9) (or .cse3 (and .cse4 .cse5 .cse20)))) (or .cse10 (and (or .cse3 (and .cse6 .cse12 .cse14 .cse15 .cse20 .cse13)) (or (and .cse11 .cse6 .cse12 .cse20 .cse13) .cse9)))) .cse21)))) (or (let ((.cse37 (and .cse24 .cse25))) (let ((.cse31 (or .cse6 .cse22 .cse15)) (.cse32 (or .cse38 .cse22 .cse15)) (.cse33 (or .cse6 .cse27)) (.cse34 (or .cse38 .cse27)) (.cse35 (or .cse6 .cse37)) (.cse36 (or .cse37 .cse38))) (let ((.cse28 (or .cse12 (and .cse26 .cse35 .cse36))) (.cse29 (or .cse23 (and (or .cse26 (and .cse33 .cse34)) .cse35 .cse36))) (.cse30 (or .cse26 (and .cse31 .cse32)))) (and (or .cse1 (and (or .cse17 (and (or .cse2 (and (or .cse3 (and .cse18 .cse28 .cse29)) (or (and .cse18 .cse7 .cse30) .cse9))) (or .cse10 (and (or (and .cse12 .cse18 .cse31 .cse13 .cse32) .cse9) (or .cse3 (and .cse33 .cse12 .cse18 .cse34 .cse13)))))) (or (and (or .cse2 (and (or .cse3 (and .cse28 .cse29)) (or .cse9 (and .cse7 .cse30)))) (or .cse10 (and (or .cse3 (and .cse33 .cse12 .cse34 .cse13)) (or (and .cse12 .cse31 .cse13 .cse32) .cse9)))) .cse16))) (or .cse21 (and (or .cse2 (and (or (and .cse28 .cse29 .cse20) .cse3) (or .cse9 (and .cse7 .cse20 .cse30)))) .cse17 .cse19 (or .cse10 (and (or .cse3 (and .cse33 .cse12 .cse34 .cse20 .cse13)) (or (and .cse12 .cse31 .cse20 .cse13 .cse32) .cse9))))))))) (not .cse0))))))) is different from true