./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f4df22d87e0e8ce7674fab52fd296a9e3ffce9a03a9a1e4bf59c1ee4f7637ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:23,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:23,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:23,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:23,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:23,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:23,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:23,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:23,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:23,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:23,356 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:23,356 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:23,357 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:23,359 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:23,359 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:23,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:23,360 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:23,361 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:23,361 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:23,362 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:23,363 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:23,363 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:23,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:23,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:23,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:23,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:23,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:23,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:23,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:23,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:23,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:23,370 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:23,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:23,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:23,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:23,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:23,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:23,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:23,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:23,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:23,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:23,380 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:23,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:23,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:23,381 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:23,381 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:23,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:23,382 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_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f4df22d87e0e8ce7674fab52fd296a9e3ffce9a03a9a1e4bf59c1ee4f7637ff [2023-11-23 20:34:23,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:23,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:23,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:23,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:23,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:23,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:27,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:27,290 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:27,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:27,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/c864be0c2/de14a93d59da47888a717c82c6ebba88/FLAG1799f5d33 [2023-11-23 20:34:27,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/c864be0c2/de14a93d59da47888a717c82c6ebba88 [2023-11-23 20:34:27,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:27,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:27,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:27,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:27,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:27,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8404dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27, skipping insertion in model container [2023-11-23 20:34:27,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:27,523 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_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i[916,929] [2023-11-23 20:34:27,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:27,591 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:27,605 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_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i[916,929] [2023-11-23 20:34:27,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:27,653 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:27,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27 WrapperNode [2023-11-23 20:34:27,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:27,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:27,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:27,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:27,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,758 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-23 20:34:27,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:27,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:27,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:27,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:27,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:27,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:27,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:27,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:27,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (1/1) ... [2023-11-23 20:34:27,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:27,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:27,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:27,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:28,089 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:28,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:28,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:28,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:28,614 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:28,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:28 BoogieIcfgContainer [2023-11-23 20:34:28,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:28,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:28,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:28,628 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:28,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:27" (1/3) ... [2023-11-23 20:34:28,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f2396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:28, skipping insertion in model container [2023-11-23 20:34:28,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:27" (2/3) ... [2023-11-23 20:34:28,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f2396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:28, skipping insertion in model container [2023-11-23 20:34:28,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:28" (3/3) ... [2023-11-23 20:34:28,636 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:28,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:28,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:28,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:28,719 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;@5989ec3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:28,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 20:34:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 20:34:28,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:28,737 INFO L195 NwaCegarLoop]: trace histogram [23, 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, 1, 1, 1] [2023-11-23 20:34:28,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:28,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1448291228, now seen corresponding path program 1 times [2023-11-23 20:34:28,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:28,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323909886] [2023-11-23 20:34:28,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:28,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:28,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:34:28,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583436702] [2023-11-23 20:34:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:28,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:28,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:28,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:28,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:34:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:29,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:34:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:30,340 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:34:30,343 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:34:30,344 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:30,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:30,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:34:30,579 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:34:30,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:30,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:30 BoogieIcfgContainer [2023-11-23 20:34:30,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:30,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:30,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:30,678 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:30,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:28" (3/4) ... [2023-11-23 20:34:30,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:34:30,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:30,683 INFO L158 Benchmark]: Toolchain (without parser) took 3363.31ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 68.6MB in the end (delta: 64.0MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,684 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:30,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.86ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 119.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.35ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 116.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,686 INFO L158 Benchmark]: Boogie Preprocessor took 62.61ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:30,687 INFO L158 Benchmark]: RCFGBuilder took 779.27ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 105.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,687 INFO L158 Benchmark]: TraceAbstraction took 2054.06ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 69.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,688 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 165.7MB. Free memory was 69.5MB in the beginning and 68.6MB in the end (delta: 827.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:30,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.86ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 119.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.35ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 116.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.61ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 115.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 779.27ms. Allocated memory is still 165.7MB. Free memory was 115.3MB in the beginning and 105.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2054.06ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 69.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 165.7MB. Free memory was 69.5MB in the beginning and 68.6MB in the end (delta: 827.3kB). Peak memory consumption was 2.1MB. 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 to_int at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 50; [L23] unsigned short int var_1_4 = 60871; [L24] unsigned short int var_1_5 = 1; [L25] unsigned short int var_1_6 = 28896; [L26] unsigned short int var_1_7 = 5; [L27] signed long int var_1_8 = 63; [L28] signed long int var_1_9 = 49; [L29] signed long int var_1_10 = 31; [L30] signed long int var_1_11 = 255; [L31] signed long int var_1_12 = 0; [L32] signed short int var_1_13 = -8; [L33] signed long int var_1_15 = 1000000000; [L34] unsigned short int var_1_16 = 4; [L35] unsigned char var_1_17 = 1; [L36] unsigned char var_1_18 = 1; [L109] isInitial = 1 [L110] FCALL initially() [L111] COND TRUE 1 [L112] FCALL updateLastVariables() [L113] CALL updateVariables() [L67] var_1_4 = __VERIFIER_nondet_ushort() [L68] CALL assume_abort_if_not(var_1_4 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 32767) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L69] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=1, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L70] var_1_5 = __VERIFIER_nondet_ushort() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L72] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=28896, var_1_7=5, var_1_8=63, var_1_9=49] [L73] var_1_6 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_6 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 16383) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=5, var_1_8=63, var_1_9=49] [L75] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=5, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=5, var_1_8=63, var_1_9=49] [L76] var_1_7 = __VERIFIER_nondet_ushort() [L77] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_8=63, var_1_9=49] [L78] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=49] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=49] [L79] var_1_9 = __VERIFIER_nondet_long() [L80] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L81] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=31, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L82] var_1_10 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L84] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=255, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L85] var_1_11 = __VERIFIER_nondet_long() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L87] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L88] var_1_12 = __VERIFIER_nondet_long() [L89] CALL assume_abort_if_not(var_1_12 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_12 >= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L90] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=1000000000, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L91] var_1_15 = __VERIFIER_nondet_long() [L92] CALL assume_abort_if_not(var_1_15 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_15 >= -2147483648) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L93] CALL assume_abort_if_not(var_1_15 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_15 <= 2147483647) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L94] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=1, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L95] var_1_17 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L97] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_18=1, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L98] var_1_18 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L100] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_18=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=-8, var_1_15=2147450882, var_1_16=4, var_1_17=0, var_1_18=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=63, var_1_9=-2147483648] [L113] RET updateVariables() [L114] CALL step() [L40] COND FALSE !(var_1_7 > var_1_5) [L43] var_1_8 = (((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - (var_1_12 - 3.4f)) [L45] unsigned short int stepLocal_0 = var_1_6; [L46] COND TRUE stepLocal_0 <= var_1_5 [L47] COND TRUE ((((var_1_8) > ((var_1_12 / var_1_15))) ? (var_1_8) : ((var_1_12 / var_1_15)))) > ((((var_1_10) < (var_1_8)) ? (var_1_10) : (var_1_8))) [L48] var_1_13 = var_1_7 [L53] COND TRUE var_1_6 > (var_1_13 * ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7)))) [L54] COND FALSE !(var_1_17 || var_1_18) [L57] var_1_16 = var_1_7 [L62] COND FALSE !(var_1_8 != var_1_8) [L114] RET step() [L115] CALL, EXPR property() [L105-L106] return ((((var_1_8 != var_1_8) ? (var_1_1 == ((unsigned short int) (var_1_4 - ((((var_1_5) < ((var_1_6 - var_1_7))) ? (var_1_5) : ((var_1_6 - var_1_7))))))) : 1) && ((var_1_7 > var_1_5) ? (var_1_8 == ((signed long int) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_8 == ((signed long int) (((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - (var_1_12 - 3.4f)))))) && ((var_1_6 <= var_1_5) ? ((((((var_1_8) > ((var_1_12 / var_1_15))) ? (var_1_8) : ((var_1_12 / var_1_15)))) > ((((var_1_10) < (var_1_8)) ? (var_1_10) : (var_1_8)))) ? (var_1_13 == ((signed short int) var_1_7)) : 1) : (var_1_13 == ((signed short int) var_1_7)))) && ((var_1_6 > (var_1_13 * ((((var_1_5) > (var_1_7)) ? (var_1_5) : (var_1_7))))) ? ((var_1_17 || var_1_18) ? (var_1_16 == ((unsigned short int) var_1_4)) : (var_1_16 == ((unsigned short int) var_1_7))) : (var_1_16 == ((unsigned short int) var_1_6))) ; [L115] RET, EXPR property() [L115] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=0, var_1_15=2147450882, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2147483647, var_1_13=0, var_1_15=2147450882, var_1_16=0, var_1_17=0, var_1_18=0, var_1_1=50, var_1_4=32767, var_1_5=16384, var_1_6=16383, var_1_7=0, var_1_8=0, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 1, TraceHistogramMax: 23, 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=43occurred 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, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:34:30,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f4df22d87e0e8ce7674fab52fd296a9e3ffce9a03a9a1e4bf59c1ee4f7637ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:33,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:33,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:34:33,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:33,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:33,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:33,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:33,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:33,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:33,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:33,705 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:33,706 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:33,706 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:33,708 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:33,709 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:33,710 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:33,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:33,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:33,712 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:33,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:33,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:33,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:33,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:33,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:33,716 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:34:33,716 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:34:33,717 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:34:33,717 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:33,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:33,718 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:33,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:33,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:34:33,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:33,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:33,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:33,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:33,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:33,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:33,722 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:34:33,724 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:33,724 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:33,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:33,725 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:33,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:33,728 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_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f4df22d87e0e8ce7674fab52fd296a9e3ffce9a03a9a1e4bf59c1ee4f7637ff [2023-11-23 20:34:34,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:34,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:34,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:34,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:34,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:34,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:37,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:37,790 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:37,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:37,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/5754fdfa4/df4722c62f3540bb86d6d7f5dd66aafa/FLAGf32114d07 [2023-11-23 20:34:37,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/data/5754fdfa4/df4722c62f3540bb86d6d7f5dd66aafa [2023-11-23 20:34:37,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:37,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:37,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:37,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:37,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:37,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:37" (1/1) ... [2023-11-23 20:34:37,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b293bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:37, skipping insertion in model container [2023-11-23 20:34:37,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:37" (1/1) ... [2023-11-23 20:34:37,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:38,060 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_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i[916,929] [2023-11-23 20:34:38,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:38,149 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:38,170 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_713b544f-7236-4d16-9607-a3e8ab6f9877/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-77.i[916,929] [2023-11-23 20:34:38,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:38,249 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:38,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38 WrapperNode [2023-11-23 20:34:38,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:38,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:38,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:38,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:38,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,330 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2023-11-23 20:34:38,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:38,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:38,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:38,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:38,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:38,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:38,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:38,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:38,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (1/1) ... [2023-11-23 20:34:38,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:38,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:38,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:38,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:34:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:38,571 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:38,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:43,089 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:43,140 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:43,140 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:43,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:43 BoogieIcfgContainer [2023-11-23 20:34:43,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:43,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:43,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:43,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:43,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:37" (1/3) ... [2023-11-23 20:34:43,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5330c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:43, skipping insertion in model container [2023-11-23 20:34:43,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:38" (2/3) ... [2023-11-23 20:34:43,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5330c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:43, skipping insertion in model container [2023-11-23 20:34:43,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:43" (3/3) ... [2023-11-23 20:34:43,151 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-77.i [2023-11-23 20:34:43,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:43,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:43,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:43,232 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;@5e5a445c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:43,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:43,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 20:34:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 20:34:43,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:43,256 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:43,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:43,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:43,264 INFO L85 PathProgramCache]: Analyzing trace with hash -124053791, now seen corresponding path program 1 times [2023-11-23 20:34:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:43,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635443566] [2023-11-23 20:34:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:43,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:43,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:43,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:34:43,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:34:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:43,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:34:43,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2023-11-23 20:34:43,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:43,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635443566] [2023-11-23 20:34:43,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635443566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:43,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:43,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:34:43,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708292988] [2023-11-23 20:34:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:43,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:34:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:43,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:34:43,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:43,784 INFO L87 Difference]: Start difference. First operand has 54 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 20:34:45,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:45,899 INFO L93 Difference]: Finished difference Result 105 states and 191 transitions. [2023-11-23 20:34:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:34:45,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 136 [2023-11-23 20:34:45,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:45,934 INFO L225 Difference]: With dead ends: 105 [2023-11-23 20:34:45,935 INFO L226 Difference]: Without dead ends: 52 [2023-11-23 20:34:45,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:45,943 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:45,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 20:34:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-23 20:34:45,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-23 20:34:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 20:34:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 79 transitions. [2023-11-23 20:34:45,999 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 79 transitions. Word has length 136 [2023-11-23 20:34:46,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:46,000 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 79 transitions. [2023-11-23 20:34:46,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 20:34:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2023-11-23 20:34:46,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 20:34:46,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:46,006 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:46,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:46,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:46,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:46,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:46,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1339576035, now seen corresponding path program 1 times [2023-11-23 20:34:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883428840] [2023-11-23 20:34:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:46,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:34:46,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:46,214 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:34:46,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:34:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:46,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:34:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:46,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-23 20:34:46,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [150374986] [2023-11-23 20:34:46,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:46,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:46,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:34:46,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:34:46,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_713b544f-7236-4d16-9607-a3e8ab6f9877/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:34:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:47,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 20:34:47,548 INFO L285 TraceCheckSpWp]: Computing forward predicates...