./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5 --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 a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:56:57,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:56:57,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 18:56:57,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:56:57,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:56:57,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:56:57,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:56:57,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:56:57,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:56:57,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:56:57,841 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:56:57,842 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:56:57,843 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:56:57,843 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:56:57,844 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:56:57,845 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:56:57,845 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:56:57,846 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:56:57,847 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:56:57,847 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:56:57,848 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:56:57,849 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:56:57,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:56:57,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:56:57,851 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:56:57,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:56:57,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:56:57,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:56:57,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:56:57,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:56:57,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:56:57,855 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:56:57,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:56:57,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:56:57,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:56:57,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:56:57,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:56:57,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:56:57,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:56:57,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:56:57,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:56:57,861 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:56:57,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:56:57,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:56:57,862 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:56:57,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:56:57,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:56:57,863 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_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a [2023-11-21 18:56:58,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:56:58,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:56:58,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:56:58,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:56:58,194 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:56:58,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:01,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:57:01,705 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:57:01,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:01,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/8bf204a90/3c2c3044c835468f971a364ff80df437/FLAG65280ef36 [2023-11-21 18:57:01,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/8bf204a90/3c2c3044c835468f971a364ff80df437 [2023-11-21 18:57:01,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:57:01,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:57:01,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:01,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:57:01,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:57:01,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:01" (1/1) ... [2023-11-21 18:57:01,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efa28ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:01, skipping insertion in model container [2023-11-21 18:57:01,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:01" (1/1) ... [2023-11-21 18:57:01,803 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:57:01,994 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_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-21 18:57:02,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:02,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:57:02,094 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_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-21 18:57:02,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:02,137 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:57:02,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02 WrapperNode [2023-11-21 18:57:02,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:02,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:02,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:57:02,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:57:02,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,213 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-11-21 18:57:02,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:02,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:57:02,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:57:02,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:57:02,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:57:02,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:57:02,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:57:02,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:57:02,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (1/1) ... [2023-11-21 18:57:02,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:02,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:57:02,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:57:02,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:57:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:57:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:57:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:57:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:57:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:57:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:57:02,506 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:57:02,510 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:57:02,877 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:57:03,133 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:57:03,133 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:57:03,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:03 BoogieIcfgContainer [2023-11-21 18:57:03,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:57:03,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:57:03,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:57:03,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:57:03,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:57:01" (1/3) ... [2023-11-21 18:57:03,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3822117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:03, skipping insertion in model container [2023-11-21 18:57:03,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:02" (2/3) ... [2023-11-21 18:57:03,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3822117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:03, skipping insertion in model container [2023-11-21 18:57:03,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:03" (3/3) ... [2023-11-21 18:57:03,145 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:03,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:57:03,166 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:57:03,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:57:03,236 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;@338b23f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:57:03,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 18:57:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 18:57:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 18:57:03,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:03,252 INFO L195 NwaCegarLoop]: trace histogram [17, 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] [2023-11-21 18:57:03,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 18:57:03,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash 480952373, now seen corresponding path program 1 times [2023-11-21 18:57:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 18:57:03,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62939252] [2023-11-21 18:57:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:57:03,423 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 18:57:03,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773862023] [2023-11-21 18:57:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:03,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:57:03,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:57:03,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 18:57:03,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 18:57:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:57:03,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:57:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:57:03,829 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 18:57:03,832 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 18:57:03,833 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 18:57:03,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 18:57:04,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 18:57:04,046 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 18:57:04,049 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 18:57:04,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 06:57:04 BoogieIcfgContainer [2023-11-21 18:57:04,113 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 18:57:04,114 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:57:04,114 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:57:04,114 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:57:04,115 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:03" (3/4) ... [2023-11-21 18:57:04,117 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:57:04,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:57:04,120 INFO L158 Benchmark]: Toolchain (without parser) took 2371.98ms. Allocated memory is still 153.1MB. Free memory was 108.1MB in the beginning and 72.2MB in the end (delta: 35.9MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,120 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:57:04,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.83ms. Allocated memory is still 153.1MB. Free memory was 108.1MB in the beginning and 94.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.93ms. Allocated memory is still 153.1MB. Free memory was 94.8MB in the beginning and 91.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,122 INFO L158 Benchmark]: Boogie Preprocessor took 69.62ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 89.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,123 INFO L158 Benchmark]: RCFGBuilder took 850.85ms. Allocated memory is still 153.1MB. Free memory was 89.5MB in the beginning and 106.8MB in the end (delta: -17.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,124 INFO L158 Benchmark]: TraceAbstraction took 975.81ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 72.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 18:57:04,124 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 153.1MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:57:04,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.83ms. Allocated memory is still 153.1MB. Free memory was 108.1MB in the beginning and 94.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.93ms. Allocated memory is still 153.1MB. Free memory was 94.8MB in the beginning and 91.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.62ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 89.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 850.85ms. Allocated memory is still 153.1MB. Free memory was 89.5MB in the beginning and 106.8MB in the end (delta: -17.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 975.81ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 72.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 153.1MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of shiftLeft at line 61, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = 8; [L25] signed short int var_1_6 = -32; [L26] unsigned char var_1_7 = 128; [L27] unsigned char var_1_8 = 10; [L28] unsigned char var_1_9 = 2; [L29] signed long int var_1_10 = 0; [L30] float var_1_11 = 32.5; [L31] float var_1_13 = 127.8; [L32] float var_1_14 = 999.25; [L33] float var_1_15 = 1000000000.5; [L34] float var_1_16 = 256.6; [L35] signed long int last_1_var_1_10 = 0; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L100] last_1_var_1_10 = var_1_10 [L110] RET updateLastVariables() [L111] CALL updateVariables() [L72] var_1_2 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L75] var_1_5 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L77] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L78] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L79] var_1_6 = __VERIFIER_nondet_short() [L80] CALL assume_abort_if_not(var_1_6 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L81] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L82] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=128, var_1_8=10, var_1_9=2] [L83] var_1_7 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=10, var_1_9=2] [L85] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=10, var_1_9=2] [L86] var_1_8 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=2] [L88] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=2] [L89] var_1_9 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L91] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L92] var_1_13 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L94] var_1_14 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L96] var_1_15 = __VERIFIER_nondet_float() [L97] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L111] RET updateVariables() [L112] CALL step() [L39] signed long int stepLocal_0 = (last_1_var_1_10 / var_1_5) % var_1_6; [L40] COND FALSE !(\read(var_1_2)) [L45] var_1_1 = var_1_9 [L47] unsigned char stepLocal_2 = var_1_1; [L48] signed long int stepLocal_1 = var_1_1 + var_1_1; [L49] COND TRUE stepLocal_1 < var_1_6 [L50] COND FALSE !(\read(var_1_2)) [L55] var_1_10 = var_1_8 [L60] unsigned char stepLocal_4 = var_1_1; [L61] EXPR (var_1_9 / var_1_5) << var_1_6 [L61] signed long int stepLocal_3 = (var_1_9 / var_1_5) << var_1_6; [L62] COND TRUE stepLocal_4 > var_1_10 [L63] COND FALSE !(var_1_1 <= stepLocal_3) [L69] var_1_16 = var_1_15 [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR (var_1_9 / var_1_5) << var_1_6 [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103-L104] return (((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))))) && (var_1_16 == ((float) var_1_15)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=4, var_1_1=5, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=2, var_1_14=3, var_1_15=4, var_1_16=4, var_1_1=5, var_1_2=0, var_1_5=-3, var_1_6=11, var_1_7=1, var_1_8=0, var_1_9=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:57:04,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5 --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 a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:57:06,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:57:07,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 18:57:07,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:57:07,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:57:07,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:57:07,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:57:07,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:57:07,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:57:07,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:57:07,114 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:57:07,115 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:57:07,115 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:57:07,117 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:57:07,118 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:57:07,118 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:57:07,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:57:07,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:57:07,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:57:07,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:57:07,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:57:07,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:57:07,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:57:07,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:57:07,124 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:57:07,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:57:07,125 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:57:07,125 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:57:07,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:57:07,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:57:07,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:57:07,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 18:57:07,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:57:07,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:57:07,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:07,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:57:07,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:57:07,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:57:07,130 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:57:07,131 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:57:07,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:57:07,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:57:07,132 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:57:07,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:57:07,133 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_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a [2023-11-21 18:57:07,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:57:07,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:57:07,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:57:07,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:57:07,590 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:57:07,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:10,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:57:11,013 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:57:11,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:11,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/94f28eab3/2f8005d93fd44eed9a361ce896a7950c/FLAGca92f3358 [2023-11-21 18:57:11,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/data/94f28eab3/2f8005d93fd44eed9a361ce896a7950c [2023-11-21 18:57:11,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:57:11,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:57:11,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:11,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:57:11,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:57:11,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef41711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11, skipping insertion in model container [2023-11-21 18:57:11,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:57:11,313 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_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-21 18:57:11,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:11,421 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:57:11,443 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_9bf39a83-4845-4118-b9db-90cc3c07151b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2023-11-21 18:57:11,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:57:11,509 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:57:11,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11 WrapperNode [2023-11-21 18:57:11,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:57:11,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:11,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:57:11,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:57:11,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,596 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-21 18:57:11,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:57:11,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:57:11,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:57:11,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:57:11,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:57:11,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:57:11,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:57:11,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:57:11,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (1/1) ... [2023-11-21 18:57:11,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:57:11,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 18:57:11,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 18:57:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 18:57:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:57:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:57:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:57:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:57:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:57:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:57:11,906 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:57:11,910 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:57:13,544 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:57:13,753 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:57:13,754 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:57:13,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:13 BoogieIcfgContainer [2023-11-21 18:57:13,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:57:13,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 18:57:13,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 18:57:13,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 18:57:13,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 06:57:11" (1/3) ... [2023-11-21 18:57:13,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7047f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:13, skipping insertion in model container [2023-11-21 18:57:13,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:57:11" (2/3) ... [2023-11-21 18:57:13,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7047f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 06:57:13, skipping insertion in model container [2023-11-21 18:57:13,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:57:13" (3/3) ... [2023-11-21 18:57:13,767 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-30.i [2023-11-21 18:57:13,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 18:57:13,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 18:57:13,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 18:57:13,863 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;@71ba69e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 18:57:13,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 18:57:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 18:57:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 18:57:13,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 18:57:13,882 INFO L195 NwaCegarLoop]: trace histogram [17, 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] [2023-11-21 18:57:13,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 18:57:13,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:57:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash 968483495, now seen corresponding path program 1 times [2023-11-21 18:57:13,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 18:57:13,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345947377] [2023-11-21 18:57:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 18:57:13,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 18:57:13,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 18:57:13,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 18:57:13,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf39a83-4845-4118-b9db-90cc3c07151b/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 18:57:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:57:14,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 18:57:14,885 INFO L285 TraceCheckSpWp]: Computing forward predicates...