./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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_d17bec15-dae2-438d-bc1f-428325532488/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 2761ad5b8b5d660ea43c0926578149a1a33205183f80a80f035b1bec4306cb62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:31,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:31,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:10:31,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:31,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:31,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:31,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:31,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:31,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:31,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:31,630 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:31,632 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:31,632 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:31,634 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:31,634 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:31,635 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:31,635 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:31,636 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:31,636 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:31,637 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:31,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:31,638 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:31,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:31,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:31,640 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:10:31,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:31,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:10:31,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:31,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:31,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:31,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:31,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:10:31,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:31,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:31,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:31,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:31,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:31,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:31,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:31,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:31,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:31,647 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:31,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:31,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:31,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:31,648 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:31,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:31,649 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_d17bec15-dae2-438d-bc1f-428325532488/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2761ad5b8b5d660ea43c0926578149a1a33205183f80a80f035b1bec4306cb62 [2023-11-23 21:10:31,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:31,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:31,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:31,997 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:31,998 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:31,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:35,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:35,613 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:35,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:35,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/ebd0cb44d/189a8ad6d07d4e8c8441df4357d8cc0e/FLAG485ac8616 [2023-11-23 21:10:35,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/ebd0cb44d/189a8ad6d07d4e8c8441df4357d8cc0e [2023-11-23 21:10:35,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:35,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:35,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:35,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:35,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:35,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:35" (1/1) ... [2023-11-23 21:10:35,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a2e021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:35, skipping insertion in model container [2023-11-23 21:10:35,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:35" (1/1) ... [2023-11-23 21:10:35,716 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:35,941 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_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-11-23 21:10:36,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:36,071 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:36,087 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_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-11-23 21:10:36,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:36,179 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:36,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36 WrapperNode [2023-11-23 21:10:36,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:36,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:36,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:36,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:36,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,293 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2023-11-23 21:10:36,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:36,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:36,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:36,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:36,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:36,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:36,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:36,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:36,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (1/1) ... [2023-11-23 21:10:36,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:36,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:36,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:36,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:36,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:10:36,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:10:36,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:36,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:36,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:36,642 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:36,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:37,635 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:38,343 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:38,344 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:10:38,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:38 BoogieIcfgContainer [2023-11-23 21:10:38,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:38,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:38,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:38,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:38,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:35" (1/3) ... [2023-11-23 21:10:38,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76234b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:38, skipping insertion in model container [2023-11-23 21:10:38,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:36" (2/3) ... [2023-11-23 21:10:38,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76234b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:38, skipping insertion in model container [2023-11-23 21:10:38,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:38" (3/3) ... [2023-11-23 21:10:38,361 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:38,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:38,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:10:38,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:38,465 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;@62c40129, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:38,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:10:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:10:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:10:38,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:38,481 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:38,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:38,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash 527624947, now seen corresponding path program 1 times [2023-11-23 21:10:38,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:38,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058146044] [2023-11-23 21:10:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:38,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:38,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:10:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126538206] [2023-11-23 21:10:38,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:38,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:38,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:10:38,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:10:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:39,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:10:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:40,033 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:10:40,036 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:10:40,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:10:40,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:40,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:10:40,260 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:10:40,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:10:40,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:10:40 BoogieIcfgContainer [2023-11-23 21:10:40,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:10:40,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:10:40,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:10:40,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:10:40,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:38" (3/4) ... [2023-11-23 21:10:40,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:10:40,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:10:40,408 INFO L158 Benchmark]: Toolchain (without parser) took 4753.29ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 65.6MB in the beginning and 130.3MB in the end (delta: -64.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:40,409 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 95.7MB in the end (delta: 77.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:40,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.73ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 65.5MB in the beginning and 110.7MB in the end (delta: -45.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:40,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.38ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 102.9MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:10:40,412 INFO L158 Benchmark]: Boogie Preprocessor took 84.67ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 99.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:10:40,413 INFO L158 Benchmark]: RCFGBuilder took 1965.15ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 99.7MB in the beginning and 114.7MB in the end (delta: -14.9MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2023-11-23 21:10:40,413 INFO L158 Benchmark]: TraceAbstraction took 2049.67ms. Allocated memory is still 182.5MB. Free memory was 113.6MB in the beginning and 130.3MB in the end (delta: -16.6MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:40,414 INFO L158 Benchmark]: Witness Printer took 6.14ms. Allocated memory is still 182.5MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:40,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 95.7MB in the end (delta: 77.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.73ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 65.5MB in the beginning and 110.7MB in the end (delta: -45.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.38ms. Allocated memory is still 151.0MB. Free memory was 110.7MB in the beginning and 102.9MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.67ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 99.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1965.15ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 99.7MB in the beginning and 114.7MB in the end (delta: -14.9MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2049.67ms. Allocated memory is still 182.5MB. Free memory was 113.6MB in the beginning and 130.3MB in the end (delta: -16.6MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Witness Printer took 6.14ms. Allocated memory is still 182.5MB. Free memory is still 130.3MB. 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 shiftRight at line 81, overapproximation of bitwiseOr at line 85, overapproximation of bitwiseAnd at line 120, overapproximation of someBinaryDOUBLEComparisonOperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 50; [L23] unsigned char var_1_5 = 200; [L24] unsigned char var_1_6 = 64; [L25] signed short int var_1_7 = -2; [L26] signed long int var_1_8 = 16; [L27] unsigned char var_1_11 = 1; [L28] signed char var_1_12 = 8; [L29] signed char var_1_13 = 0; [L30] signed char var_1_14 = 10; [L31] signed char var_1_15 = 8; [L32] unsigned char var_1_16 = 5; [L33] unsigned char var_1_17 = 100; [L34] unsigned char var_1_18 = 25; [L35] unsigned char var_1_19 = 0; [L36] signed short int var_1_20 = -128; [L37] signed short int var_1_21 = -8; [L38] double var_1_22 = 100000000000.35; [L39] double var_1_23 = 199.4; [L40] double var_1_24 = 63.5; [L41] signed short int var_1_25 = 1; [L42] unsigned char var_1_27 = 1; [L43] unsigned char var_1_28 = 0; [L44] signed short int var_1_29 = -8; [L45] signed long int last_1_var_1_8 = 16; [L46] unsigned char last_1_var_1_16 = 5; [L171] isInitial = 1 [L172] FCALL initially() [L173] COND TRUE 1 [L174] CALL updateLastVariables() [L163] last_1_var_1_8 = var_1_8 [L164] last_1_var_1_16 = var_1_16 [L174] RET updateLastVariables() [L175] CALL updateVariables() [L128] var_1_5 = __VERIFIER_nondet_uchar() [L129] CALL assume_abort_if_not(var_1_5 >= 190) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_5 >= 190) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L130] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L131] var_1_6 = __VERIFIER_nondet_uchar() [L132] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_7=-2, var_1_8=16] [L133] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L134] var_1_13 = __VERIFIER_nondet_char() [L135] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L136] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L137] var_1_14 = __VERIFIER_nondet_char() [L138] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L139] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L140] var_1_15 = __VERIFIER_nondet_char() [L141] CALL assume_abort_if_not(var_1_15 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_15 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L142] CALL assume_abort_if_not(var_1_15 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_15 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L143] var_1_17 = __VERIFIER_nondet_uchar() [L144] CALL assume_abort_if_not(var_1_17 >= 95) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_17 >= 95) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L145] CALL assume_abort_if_not(var_1_17 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_17 <= 127) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L146] var_1_18 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L148] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L149] var_1_19 = __VERIFIER_nondet_uchar() [L150] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L151] CALL assume_abort_if_not(var_1_19 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_19 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L152] var_1_22 = __VERIFIER_nondet_double() [L153] CALL assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L154] var_1_23 = __VERIFIER_nondet_double() [L155] CALL assume_abort_if_not((var_1_23 >= -922337.2036854776000e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854776000e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not((var_1_23 >= -922337.2036854776000e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854776000e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L156] var_1_24 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_24 >= -922337.2036854776000e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854776000e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_24 >= -922337.2036854776000e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854776000e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L158] var_1_28 = __VERIFIER_nondet_uchar() [L159] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L160] CALL assume_abort_if_not(var_1_28 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_28 <= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=5, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=16] [L175] RET updateVariables() [L176] CALL step() [L50] COND TRUE (last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16 [L51] var_1_1 = ((var_1_5 - 2) - var_1_6) [L55] COND FALSE !(100.5f < var_1_22) [L58] COND TRUE var_1_27 || var_1_27 [L59] var_1_12 = (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))) [L61] signed long int stepLocal_5 = 2; [L62] unsigned char stepLocal_4 = var_1_5; [L63] unsigned char stepLocal_3 = var_1_27; [L64] COND FALSE !(stepLocal_4 <= var_1_1) [L67] COND TRUE stepLocal_3 || var_1_27 [L68] COND TRUE stepLocal_5 < var_1_1 [L69] var_1_8 = var_1_6 [L73] COND FALSE !(! var_1_27) [L80] signed long int stepLocal_2 = ~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))); [L81] EXPR var_1_11 >> var_1_1 [L81] signed long int stepLocal_1 = var_1_11 >> var_1_1; [L82] unsigned char stepLocal_0 = var_1_1; [L83] COND TRUE var_1_5 >= stepLocal_2 [L84] COND FALSE !(var_1_1 <= stepLocal_1) [L94] COND TRUE (var_1_22 * -0.625) < (var_1_23 * var_1_24) [L95] var_1_21 = ((((var_1_13) < ((var_1_12 + (256 - var_1_8)))) ? (var_1_13) : ((var_1_12 + (256 - var_1_8))))) [L101] COND FALSE !(var_1_7 > var_1_5) [L106] COND TRUE \read(var_1_27) [L107] COND FALSE !(var_1_29 >= ((var_1_1 + var_1_19) - ((((var_1_1) > (var_1_8)) ? (var_1_1) : (var_1_8))))) [L117] COND TRUE var_1_15 > var_1_25 [L118] var_1_16 = (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)) [L120] EXPR var_1_16 | var_1_1 [L120] EXPR (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))) [L120] signed long int stepLocal_6 = (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))); [L121] COND TRUE stepLocal_6 > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16))) [L122] var_1_20 = (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))) [L176] RET step() [L177] CALL, EXPR property() [L167] EXPR (((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1))) [L167] EXPR (var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)) [L167] EXPR var_1_11 >> var_1_1 [L167] EXPR (var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1 [L167] EXPR (var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)) [L167] EXPR (((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1))) [L167] EXPR ((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16)))) [L167] EXPR var_1_16 | var_1_1 [L167] EXPR (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))) [L167] EXPR ((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16)))) [L167-L168] return ((((((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16))))) && (((var_1_22 * -0.625) < (var_1_23 * var_1_24)) ? (var_1_21 == ((signed short int) ((((var_1_13) < ((var_1_12 + (256 - var_1_8)))) ? (var_1_13) : ((var_1_12 + (256 - var_1_8))))))) : (var_1_27 ? (var_1_21 == ((signed short int) (((((((((var_1_12 + -1)) > (var_1_17)) ? ((var_1_12 + -1)) : (var_1_17)))) > ((var_1_13 + var_1_6))) ? ((((((var_1_12 + -1)) > (var_1_17)) ? ((var_1_12 + -1)) : (var_1_17)))) : ((var_1_13 + var_1_6)))))) : 1))) && (var_1_27 ? ((var_1_29 >= ((var_1_1 + var_1_19) - ((((var_1_1) > (var_1_8)) ? (var_1_1) : (var_1_8))))) ? (var_1_27 ? (var_1_25 == ((signed short int) var_1_17)) : (var_1_25 == ((signed short int) var_1_18))) : 1) : (var_1_25 == ((signed short int) var_1_14)))) && ((100.5f < var_1_22) ? (var_1_27 == ((unsigned char) (! var_1_28))) : 1)) && ((var_1_7 > var_1_5) ? (((var_1_21 <= var_1_6) || (var_1_27 || var_1_27)) ? (var_1_29 == ((signed short int) var_1_17)) : 1) : 1) ; [L177] RET, EXPR property() [L177] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=-7, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=122, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=61, var_1_20=189, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=127] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=-7, var_1_13=-8, var_1_14=1, var_1_15=2, var_1_16=122, var_1_17=127, var_1_18=0, var_1_19=59, var_1_1=61, var_1_20=189, var_1_21=-8, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=127, var_1_7=-2, var_1_8=127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred 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: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:10:40,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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_d17bec15-dae2-438d-bc1f-428325532488/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 2761ad5b8b5d660ea43c0926578149a1a33205183f80a80f035b1bec4306cb62 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:43,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:43,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:10:43,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:43,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:43,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:43,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:43,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:43,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:43,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:43,531 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:43,531 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:43,532 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:43,533 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:43,533 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:43,534 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:43,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:43,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:43,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:10:43,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:10:43,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:43,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:43,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:43,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:43,540 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:10:43,540 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:10:43,541 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:10:43,541 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:10:43,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:43,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:43,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:43,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:10:43,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:43,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:43,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:43,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:43,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:43,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:43,546 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:10:43,546 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:43,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:43,547 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:43,547 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:43,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:43,548 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_d17bec15-dae2-438d-bc1f-428325532488/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2761ad5b8b5d660ea43c0926578149a1a33205183f80a80f035b1bec4306cb62 [2023-11-23 21:10:44,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:44,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:44,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:44,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:44,074 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:44,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:47,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:47,669 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:47,670 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:47,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/0726c2828/c034234c882f42fca4aaa96c62fde667/FLAG86da528fc [2023-11-23 21:10:47,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/data/0726c2828/c034234c882f42fca4aaa96c62fde667 [2023-11-23 21:10:47,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:47,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:47,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:47,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:47,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:47,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:47" (1/1) ... [2023-11-23 21:10:47,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb7ccbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:47, skipping insertion in model container [2023-11-23 21:10:47,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:47" (1/1) ... [2023-11-23 21:10:47,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:47,915 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_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-11-23 21:10:48,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:48,056 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:48,070 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_d17bec15-dae2-438d-bc1f-428325532488/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-11-23 21:10:48,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:48,187 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:48,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48 WrapperNode [2023-11-23 21:10:48,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:48,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:48,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:48,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:48,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,251 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2023-11-23 21:10:48,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:48,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:48,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:48,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:48,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:48,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:48,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:48,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:48,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (1/1) ... [2023-11-23 21:10:48,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:48,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:48,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:48,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:10:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:10:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:10:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:48,561 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:48,564 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:55,273 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:55,338 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:55,339 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:10:55,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:55 BoogieIcfgContainer [2023-11-23 21:10:55,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:55,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:55,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:55,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:55,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:47" (1/3) ... [2023-11-23 21:10:55,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d67568b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:55, skipping insertion in model container [2023-11-23 21:10:55,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:48" (2/3) ... [2023-11-23 21:10:55,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d67568b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:55, skipping insertion in model container [2023-11-23 21:10:55,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:55" (3/3) ... [2023-11-23 21:10:55,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-59.i [2023-11-23 21:10:55,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:55,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:10:55,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:55,438 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;@6efdb624, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:55,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:10:55,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:10:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 21:10:55,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:55,464 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:55,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:55,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash 231606935, now seen corresponding path program 1 times [2023-11-23 21:10:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:55,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716510931] [2023-11-23 21:10:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:55,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:10:55,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:55,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:10:55,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:10:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:56,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:10:56,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-11-23 21:10:56,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:56,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:56,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716510931] [2023-11-23 21:10:56,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716510931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:56,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:56,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:10:56,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255534291] [2023-11-23 21:10:56,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:56,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:10:56,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:10:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:10:56,225 INFO L87 Difference]: Start difference. First operand has 69 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:10:58,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:58,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:58,417 INFO L93 Difference]: Finished difference Result 135 states and 243 transitions. [2023-11-23 21:10:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:10:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2023-11-23 21:10:58,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:58,462 INFO L225 Difference]: With dead ends: 135 [2023-11-23 21:10:58,462 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 21:10:58,466 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 21:10:58,470 INFO L413 NwaCegarLoop]: 104 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, 104 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 21:10:58,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 21:10:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 21:10:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-23 21:10:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 44 states have internal predecessors, (65), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:10:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2023-11-23 21:10:58,526 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 107 transitions. Word has length 136 [2023-11-23 21:10:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:58,526 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 107 transitions. [2023-11-23 21:10:58,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 21:10:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 107 transitions. [2023-11-23 21:10:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 21:10:58,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:58,535 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:58,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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)] Ended with exit code 0 [2023-11-23 21:10:58,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 21:10:58,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:58,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:58,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2109323375, now seen corresponding path program 1 times [2023-11-23 21:10:58,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:58,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696507840] [2023-11-23 21:10:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:58,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:10:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:58,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:10:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 21:10:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:59,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:10:59,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-23 21:10:59,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:59,404 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696507840] [2023-11-23 21:10:59,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696507840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:59,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:59,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:59,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362263609] [2023-11-23 21:10:59,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:59,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:59,408 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:11:01,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:11:03,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:11:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:03,573 INFO L93 Difference]: Finished difference Result 133 states and 213 transitions. [2023-11-23 21:11:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-11-23 21:11:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:03,614 INFO L225 Difference]: With dead ends: 133 [2023-11-23 21:11:03,614 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 21:11:03,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:03,618 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 24 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:03,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 179 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 21:11:03,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 21:11:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-23 21:11:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 44 states have internal predecessors, (64), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:11:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 106 transitions. [2023-11-23 21:11:03,637 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 106 transitions. Word has length 136 [2023-11-23 21:11:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:03,640 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 106 transitions. [2023-11-23 21:11:03,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:11:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 106 transitions. [2023-11-23 21:11:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 21:11:03,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:03,645 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:03,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:11:03,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 21:11:03,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:03,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash -899973457, now seen corresponding path program 1 times [2023-11-23 21:11:03,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:11:03,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692918109] [2023-11-23 21:11:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:03,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:11:03,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:11:03,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:11:03,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 (4)] Waiting until timeout for monitored process [2023-11-23 21:11:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:04,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:11:04,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:11:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-23 21:11:04,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:11:04,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:11:04,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692918109] [2023-11-23 21:11:04,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692918109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:04,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:04,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:11:04,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961899816] [2023-11-23 21:11:04,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:04,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:11:04,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:11:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:11:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:11:04,801 INFO L87 Difference]: Start difference. First operand 67 states and 106 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:11:08,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:10,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:12,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:12,165 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2023-11-23 21:11:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:11:12,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 137 [2023-11-23 21:11:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:12,207 INFO L225 Difference]: With dead ends: 140 [2023-11-23 21:11:12,207 INFO L226 Difference]: Without dead ends: 74 [2023-11-23 21:11:12,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:11:12,210 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 109 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 88 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:12,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 144 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2023-11-23 21:11:12,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-23 21:11:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2023-11-23 21:11:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:11:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 100 transitions. [2023-11-23 21:11:12,235 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 100 transitions. Word has length 137 [2023-11-23 21:11:12,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:12,237 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 100 transitions. [2023-11-23 21:11:12,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 21:11:12,237 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 100 transitions. [2023-11-23 21:11:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 21:11:12,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:12,242 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:12,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:11:12,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 21:11:12,455 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:12,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:12,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1498892420, now seen corresponding path program 1 times [2023-11-23 21:11:12,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:11:12,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687999939] [2023-11-23 21:11:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:12,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:11:12,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:11:12,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:11:12,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/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 (5)] Waiting until timeout for monitored process [2023-11-23 21:11:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:13,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:11:13,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:11:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-11-23 21:11:15,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:11:16,560 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:11:16,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687999939] [2023-11-23 21:11:16,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687999939] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:11:16,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [458393560] [2023-11-23 21:11:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:16,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:11:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:11:16,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:11:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 21:11:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:17,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:11:17,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:11:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-11-23 21:11:20,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:11:20,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [458393560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:11:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118430422] [2023-11-23 21:11:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:20,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:11:20,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:20,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:11:20,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17bec15-dae2-438d-bc1f-428325532488/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:11:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:20,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:11:20,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:11:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-11-23 21:11:22,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:11:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118430422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:11:23,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:11:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 10 [2023-11-23 21:11:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837146847] [2023-11-23 21:11:23,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:11:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:11:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:11:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:11:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:11:23,089 INFO L87 Difference]: Start difference. First operand 70 states and 100 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 21:11:27,899 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 21:11:29,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []