./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:41,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:41,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:09:41,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:41,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:41,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:41,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:41,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:41,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:41,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:41,605 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:41,606 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:41,606 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:41,607 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:41,608 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:41,608 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:41,609 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:41,610 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:41,610 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:41,611 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:41,611 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:41,616 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:41,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:41,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:41,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:41,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:41,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:41,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:41,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:41,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:41,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:41,623 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:41,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:41,624 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:41,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:41,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:41,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:41,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:41,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:41,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:41,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:41,627 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:41,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:41,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:41,628 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:41,628 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:41,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:41,629 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-23 21:09:41,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:41,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:41,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:41,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:41,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:41,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:45,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:45,587 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:45,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:45,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/96eedd39b/0257c4a3c5094dc19ef4b9f33f7f4df6/FLAGed8060c7c [2023-11-23 21:09:45,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/96eedd39b/0257c4a3c5094dc19ef4b9f33f7f4df6 [2023-11-23 21:09:45,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:45,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:45,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:45,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:45,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:45,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:45" (1/1) ... [2023-11-23 21:09:45,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f946ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:45, skipping insertion in model container [2023-11-23 21:09:45,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:45" (1/1) ... [2023-11-23 21:09:45,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:45,910 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-23 21:09:46,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:46,039 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:46,054 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-23 21:09:46,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:46,143 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:46,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46 WrapperNode [2023-11-23 21:09:46,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:46,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:46,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:46,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:46,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,262 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2023-11-23 21:09:46,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:46,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:46,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:46,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:46,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:46,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:46,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:46,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:46,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (1/1) ... [2023-11-23 21:09:46,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:46,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:46,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:46,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:46,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:46,703 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:46,706 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:47,366 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:47,836 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:47,836 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:47,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:47 BoogieIcfgContainer [2023-11-23 21:09:47,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:47,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:47,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:47,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:47,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:45" (1/3) ... [2023-11-23 21:09:47,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546aaf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:47, skipping insertion in model container [2023-11-23 21:09:47,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:46" (2/3) ... [2023-11-23 21:09:47,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546aaf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:47, skipping insertion in model container [2023-11-23 21:09:47,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:47" (3/3) ... [2023-11-23 21:09:47,853 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:47,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:47,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:47,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:47,967 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;@19b205a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:47,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:47,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:09:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 21:09:47,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:47,988 INFO L195 NwaCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:47,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:47,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1869448620, now seen corresponding path program 1 times [2023-11-23 21:09:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:48,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026407208] [2023-11-23 21:09:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:48,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:09:48,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116701865] [2023-11-23 21:09:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:48,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:09:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:48,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:09:48,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:09:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:48,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:09:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:09:49,127 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:09:49,131 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:09:49,132 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:09:49,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:49,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:09:49,356 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:09:49,360 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:09:49,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:09:49 BoogieIcfgContainer [2023-11-23 21:09:49,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:09:49,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:09:49,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:09:49,543 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:09:49,543 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:47" (3/4) ... [2023-11-23 21:09:49,552 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:09:49,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:09:49,555 INFO L158 Benchmark]: Toolchain (without parser) took 3916.76ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 75.0MB in the end (delta: 19.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-11-23 21:09:49,556 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:49,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.43ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 78.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:09:49,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.29ms. Allocated memory is still 138.4MB. Free memory was 77.8MB in the beginning and 72.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:09:49,565 INFO L158 Benchmark]: Boogie Preprocessor took 193.15ms. Allocated memory is still 138.4MB. Free memory was 72.4MB in the beginning and 107.8MB in the end (delta: -35.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:49,567 INFO L158 Benchmark]: RCFGBuilder took 1381.04ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 77.2MB in the end (delta: 30.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2023-11-23 21:09:49,570 INFO L158 Benchmark]: TraceAbstraction took 1698.68ms. Allocated memory is still 138.4MB. Free memory was 76.0MB in the beginning and 75.0MB in the end (delta: 964.3kB). Peak memory consumption was 861.2kB. Max. memory is 16.1GB. [2023-11-23 21:09:49,570 INFO L158 Benchmark]: Witness Printer took 12.18ms. Allocated memory is still 138.4MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:09:49,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.43ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 78.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.29ms. Allocated memory is still 138.4MB. Free memory was 77.8MB in the beginning and 72.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 193.15ms. Allocated memory is still 138.4MB. Free memory was 72.4MB in the beginning and 107.8MB in the end (delta: -35.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1381.04ms. Allocated memory is still 138.4MB. Free memory was 107.4MB in the beginning and 77.2MB in the end (delta: 30.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1698.68ms. Allocated memory is still 138.4MB. Free memory was 76.0MB in the beginning and 75.0MB in the end (delta: 964.3kB). Peak memory consumption was 861.2kB. Max. memory is 16.1GB. * Witness Printer took 12.18ms. Allocated memory is still 138.4MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 205, overapproximation of shiftLeft at line 131, overapproximation of someBinaryArithmeticFLOAToperation at line 132. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned short int var_1_3 = 36007; [L24] unsigned short int var_1_5 = 32; [L25] unsigned short int var_1_6 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 1; [L28] unsigned long int var_1_10 = 128; [L29] unsigned short int var_1_11 = 1; [L30] signed char var_1_12 = 50; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = 1; [L33] signed char var_1_15 = 0; [L34] signed char var_1_16 = -5; [L35] signed short int var_1_17 = -32; [L36] unsigned short int var_1_19 = 10; [L37] signed char var_1_20 = 2; [L38] signed char var_1_22 = 16; [L39] float var_1_23 = 3.225; [L40] unsigned char var_1_24 = 128; [L41] float var_1_25 = 127.875; [L42] float var_1_26 = 7.6; [L43] unsigned char var_1_27 = 1; [L44] unsigned char var_1_28 = 0; [L45] signed char var_1_29 = 32; [L46] unsigned char var_1_30 = 64; [L47] unsigned char var_1_31 = 64; [L48] unsigned char var_1_32 = 100; [L49] unsigned char var_1_33 = 2; [L50] unsigned char var_1_34 = 10; [L51] signed short int var_1_35 = 200; [L52] signed char var_1_36 = -10; [L53] unsigned long int last_1_var_1_10 = 128; [L54] unsigned short int last_1_var_1_11 = 1; [L55] unsigned char last_1_var_1_30 = 64; [L56] signed short int last_1_var_1_35 = 200; [L209] isInitial = 1 [L210] FCALL initially() [L211] COND TRUE 1 [L212] CALL updateLastVariables() [L199] last_1_var_1_10 = var_1_10 [L200] last_1_var_1_11 = var_1_11 [L201] last_1_var_1_30 = var_1_30 [L202] last_1_var_1_35 = var_1_35 [L212] RET updateLastVariables() [L213] CALL updateVariables() [L151] var_1_3 = __VERIFIER_nondet_ushort() [L152] CALL assume_abort_if_not(var_1_3 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_3 >= 32767) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L153] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L154] var_1_5 = __VERIFIER_nondet_ushort() [L155] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_5 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=128, var_1_8=1, var_1_9=1] [L156] CALL assume_abort_if_not(var_1_5 <= 32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not(var_1_5 <= 32768) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=128, var_1_8=1, var_1_9=1] [L157] var_1_6 = __VERIFIER_nondet_ushort() [L158] CALL assume_abort_if_not(var_1_6 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_6 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L159] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L160] var_1_9 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L162] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L163] var_1_13 = __VERIFIER_nondet_char() [L164] CALL assume_abort_if_not(var_1_13 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_13 >= -126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L165] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L166] var_1_14 = __VERIFIER_nondet_char() [L167] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L168] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L169] var_1_15 = __VERIFIER_nondet_char() [L170] CALL assume_abort_if_not(var_1_15 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_15 >= -63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L171] CALL assume_abort_if_not(var_1_15 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_15 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L172] var_1_16 = __VERIFIER_nondet_char() [L173] CALL assume_abort_if_not(var_1_16 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_16 >= -63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L174] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L175] var_1_22 = __VERIFIER_nondet_char() [L176] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L177] CALL assume_abort_if_not(var_1_22 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_22 <= 126) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L178] var_1_24 = __VERIFIER_nondet_uchar() [L179] CALL assume_abort_if_not(var_1_24 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_24 >= 127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L180] CALL assume_abort_if_not(var_1_24 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_24 <= 255) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L181] var_1_25 = __VERIFIER_nondet_float() [L182] CALL assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not((var_1_25 >= -461168.6018427382800e+13F && var_1_25 <= -1.0e-20F) || (var_1_25 <= 4611686.018427382800e+12F && var_1_25 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L183] var_1_26 = __VERIFIER_nondet_float() [L184] CALL assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L184] RET assume_abort_if_not((var_1_26 >= -461168.6018427382800e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 4611686.018427382800e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L185] var_1_28 = __VERIFIER_nondet_uchar() [L186] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L187] CALL assume_abort_if_not(var_1_28 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L187] RET assume_abort_if_not(var_1_28 <= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L188] var_1_31 = __VERIFIER_nondet_uchar() [L189] CALL assume_abort_if_not(var_1_31 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L189] RET assume_abort_if_not(var_1_31 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L190] CALL assume_abort_if_not(var_1_31 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L190] RET assume_abort_if_not(var_1_31 <= 64) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L191] var_1_32 = __VERIFIER_nondet_uchar() [L192] CALL assume_abort_if_not(var_1_32 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L192] RET assume_abort_if_not(var_1_32 >= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L193] CALL assume_abort_if_not(var_1_32 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not(var_1_32 <= 127) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L194] var_1_33 = __VERIFIER_nondet_uchar() [L195] CALL assume_abort_if_not(var_1_33 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L195] RET assume_abort_if_not(var_1_33 >= 0) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L196] CALL assume_abort_if_not(var_1_33 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=63, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L196] RET assume_abort_if_not(var_1_33 <= 63) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=0, var_1_23=129/40, var_1_24=255, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=63, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=1, var_1_9=1] [L213] RET updateVariables() [L214] CALL step() [L60] COND TRUE last_1_var_1_11 < last_1_var_1_35 [L61] var_1_27 = (var_1_28 || (! var_1_9)) [L69] signed long int stepLocal_7 = -16; [L70] COND FALSE !(stepLocal_7 == last_1_var_1_10) [L73] signed long int stepLocal_6 = 25 * (var_1_34 - var_1_24); [L74] COND FALSE !(stepLocal_6 >= last_1_var_1_30) [L77] COND TRUE ! var_1_27 [L78] COND FALSE !(\read(var_1_27)) [L81] COND FALSE !(var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) [L88] signed long int stepLocal_0 = (((10) < 0 ) ? -(10) : (10)); [L89] COND FALSE !(stepLocal_0 > var_1_34) [L92] var_1_12 = (var_1_15 + var_1_16) [L94] var_1_35 = var_1_32 [L95] var_1_36 = var_1_33 [L96] COND TRUE var_1_34 > (var_1_3 - var_1_6) [L97] var_1_8 = (! (! 0)) [L101] COND FALSE !(\read(var_1_8)) [L104] COND TRUE var_1_6 > var_1_30 [L105] COND TRUE var_1_34 <= var_1_3 [L106] COND TRUE var_1_19 <= var_1_34 [L107] var_1_11 = (var_1_3 - 16) [L117] COND TRUE var_1_34 <= var_1_35 [L118] var_1_10 = (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))) [L124] unsigned short int stepLocal_1 = var_1_5; [L125] COND TRUE var_1_6 > stepLocal_1 [L126] var_1_17 = (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))) [L128] signed short int stepLocal_3 = var_1_17; [L129] signed char stepLocal_2 = var_1_15; [L130] COND FALSE !(var_1_3 < stepLocal_3) [L135] var_1_23 = 15.79f [L137] unsigned char stepLocal_5 = var_1_27; [L138] unsigned short int stepLocal_4 = var_1_19; [L139] COND FALSE !(stepLocal_5 && var_1_27) [L144] var_1_29 = ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))) [L146] COND TRUE (var_1_30 * 1) <= (var_1_36 + var_1_11) [L147] var_1_20 = (var_1_14 - var_1_22) [L214] RET step() [L215] CALL, EXPR property() [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205] EXPR (var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)) [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205-L206] return (((((((((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)))) && ((last_1_var_1_11 < last_1_var_1_35) ? (var_1_27 == ((unsigned char) (var_1_28 || (! var_1_9)))) : ((var_1_14 == var_1_6) ? (var_1_27 == ((unsigned char) var_1_28)) : (var_1_27 == ((unsigned char) var_1_28))))) && ((var_1_27 && var_1_27) ? ((var_1_1 < var_1_19) ? (var_1_29 == ((signed char) ((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))))) : 1) : (var_1_29 == ((signed char) ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))))))) && (((25 * (var_1_34 - var_1_24)) >= last_1_var_1_30) ? (var_1_30 == ((unsigned char) ((var_1_31 + 8) + (var_1_32 - var_1_33)))) : 1)) && ((-16 == last_1_var_1_10) ? (var_1_34 == ((unsigned char) ((((var_1_33) > (var_1_14)) ? (var_1_33) : (var_1_14))))) : 1)) && (var_1_35 == ((signed short int) var_1_32))) && (var_1_36 == ((signed char) var_1_33)) ; [L215] RET, EXPR property() [L215] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=32831, var_1_11=32751, var_1_12=0, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=127, var_1_19=10, var_1_1=1, var_1_20=0, var_1_22=0, var_1_23=1579/100, var_1_24=255, var_1_27=0, var_1_28=0, var_1_29=-1, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=63, var_1_34=10, var_1_35=127, var_1_36=63, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=32831, var_1_11=32751, var_1_12=0, var_1_13=-1, var_1_14=0, var_1_15=-63, var_1_16=63, var_1_17=127, var_1_19=10, var_1_1=1, var_1_20=0, var_1_22=0, var_1_23=1579/100, var_1_24=255, var_1_27=0, var_1_28=0, var_1_29=-1, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=63, var_1_34=10, var_1_35=127, var_1_36=63, var_1_3=32767, var_1_5=32766, var_1_6=32767, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 30, 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=55occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 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 21:09:49,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:52,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:52,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:09:52,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:52,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:52,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:52,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:52,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:52,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:52,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:52,878 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:52,879 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:52,879 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:52,880 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:52,881 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:52,881 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:52,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:52,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:52,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:09:52,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:09:52,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:52,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:52,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:52,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:52,888 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:09:52,889 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:09:52,890 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:09:52,890 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:09:52,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:52,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:52,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:52,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:09:52,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:52,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:52,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:52,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:52,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:52,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:52,897 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:09:52,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:09:52,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:52,899 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:52,899 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:52,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:52,899 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-23 21:09:53,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:53,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:53,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:53,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:53,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:53,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:56,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:57,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:57,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:57,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/c838563a1/f0ddee18ff204b399c3e4cf44f879ec3/FLAG08390e032 [2023-11-23 21:09:57,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/data/c838563a1/f0ddee18ff204b399c3e4cf44f879ec3 [2023-11-23 21:09:57,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:57,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:57,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:57,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:57,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:57,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:57,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1949ffc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57, skipping insertion in model container [2023-11-23 21:09:57,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:57,445 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:57,612 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-23 21:09:57,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:57,735 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:57,749 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_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-23 21:09:57,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:57,901 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:57,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57 WrapperNode [2023-11-23 21:09:57,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:57,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:57,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:57,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:57,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:57,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,047 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-11-23 21:09:58,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:58,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:58,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:58,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:58,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:58,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:58,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:58,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:58,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (1/1) ... [2023-11-23 21:09:58,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:58,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:58,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:09:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:58,435 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:58,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:59,257 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:59,412 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:59,413 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:09:59,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:59 BoogieIcfgContainer [2023-11-23 21:09:59,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:59,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:59,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:59,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:59,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:57" (1/3) ... [2023-11-23 21:09:59,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c1a4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:59, skipping insertion in model container [2023-11-23 21:09:59,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:57" (2/3) ... [2023-11-23 21:09:59,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c1a4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:59, skipping insertion in model container [2023-11-23 21:09:59,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:59" (3/3) ... [2023-11-23 21:09:59,432 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-23 21:09:59,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:59,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:59,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:59,546 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;@6e9ec7f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:59,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:59,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:09:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 21:09:59,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:59,593 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:59,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:59,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1403776452, now seen corresponding path program 1 times [2023-11-23 21:09:59,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171992683] [2023-11-23 21:09:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:59,623 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 21:09:59,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:59,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:09:59,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:00,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:10:00,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 874 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2023-11-23 21:10:00,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:00,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171992683] [2023-11-23 21:10:00,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171992683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:00,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:00,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:10:00,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240841143] [2023-11-23 21:10:00,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:00,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:10:00,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:00,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:10:00,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:10:00,344 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 21:10:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:00,643 INFO L93 Difference]: Finished difference Result 171 states and 308 transitions. [2023-11-23 21:10:00,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:10:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 191 [2023-11-23 21:10:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:00,667 INFO L225 Difference]: With dead ends: 171 [2023-11-23 21:10:00,668 INFO L226 Difference]: Without dead ends: 85 [2023-11-23 21:10:00,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 190 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 21:10:00,686 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:00,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:10:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-23 21:10:00,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-23 21:10:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:10:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2023-11-23 21:10:00,778 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 191 [2023-11-23 21:10:00,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:00,780 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2023-11-23 21:10:00,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 21:10:00,781 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2023-11-23 21:10:00,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 21:10:00,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:00,795 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:00,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:01,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:01,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:01,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1689953976, now seen corresponding path program 1 times [2023-11-23 21:10:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305949331] [2023-11-23 21:10:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:01,016 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 21:10:01,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:01,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:01,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:01,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:10:01,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-23 21:10:02,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:02,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:02,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305949331] [2023-11-23 21:10:02,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305949331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:02,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:02,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:10:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195800395] [2023-11-23 21:10:02,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:02,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:02,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:02,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:02,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:02,327 INFO L87 Difference]: Start difference. First operand 85 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:03,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:03,325 INFO L93 Difference]: Finished difference Result 268 states and 424 transitions. [2023-11-23 21:10:03,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:03,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-23 21:10:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:03,342 INFO L225 Difference]: With dead ends: 268 [2023-11-23 21:10:03,342 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 21:10:03,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:10:03,345 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 165 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:03,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 440 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:10:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 21:10:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2023-11-23 21:10:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 104 states have internal predecessors, (147), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:10:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 267 transitions. [2023-11-23 21:10:03,389 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 267 transitions. Word has length 191 [2023-11-23 21:10:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:03,390 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 267 transitions. [2023-11-23 21:10:03,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 267 transitions. [2023-11-23 21:10:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 21:10:03,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:03,395 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:03,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:03,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:03,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1267252150, now seen corresponding path program 1 times [2023-11-23 21:10:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:03,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127172107] [2023-11-23 21:10:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:03,607 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 21:10:03,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:03,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:03,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:04,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:10:04,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-23 21:10:05,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:05,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:05,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127172107] [2023-11-23 21:10:05,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127172107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:05,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [829699983] [2023-11-23 21:10:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:05,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:05,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:05,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:05,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 21:10:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:06,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:10:06,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-23 21:10:06,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [829699983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:06,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:10:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 14 [2023-11-23 21:10:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120580088] [2023-11-23 21:10:06,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:06,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:06,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:06,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:06,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:10:06,169 INFO L87 Difference]: Start difference. First operand 167 states and 267 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:06,416 INFO L93 Difference]: Finished difference Result 499 states and 799 transitions. [2023-11-23 21:10:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:06,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-23 21:10:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:06,422 INFO L225 Difference]: With dead ends: 499 [2023-11-23 21:10:06,422 INFO L226 Difference]: Without dead ends: 333 [2023-11-23 21:10:06,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 557 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:10:06,425 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 131 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:06,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 359 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:10:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-23 21:10:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 169. [2023-11-23 21:10:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 106 states have internal predecessors, (149), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:10:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 269 transitions. [2023-11-23 21:10:06,484 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 269 transitions. Word has length 191 [2023-11-23 21:10:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:06,486 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 269 transitions. [2023-11-23 21:10:06,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:06,486 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 269 transitions. [2023-11-23 21:10:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 21:10:06,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:06,490 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:06,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:06,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:06,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:06,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:06,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1854058164, now seen corresponding path program 1 times [2023-11-23 21:10:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:06,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769006414] [2023-11-23 21:10:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:06,900 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 21:10:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:06,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:06,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (6)] Waiting until timeout for monitored process [2023-11-23 21:10:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:07,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:10:07,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-23 21:10:07,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:08,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:08,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769006414] [2023-11-23 21:10:08,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769006414] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:08,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2111448657] [2023-11-23 21:10:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:08,593 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:08,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:08,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:08,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 21:10:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:08,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:10:08,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-23 21:10:09,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:09,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2111448657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:09,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:10:09,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 15 [2023-11-23 21:10:09,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330745152] [2023-11-23 21:10:09,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:09,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:10:09,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:10:09,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:10:09,088 INFO L87 Difference]: Start difference. First operand 169 states and 269 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:09,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:09,649 INFO L93 Difference]: Finished difference Result 485 states and 772 transitions. [2023-11-23 21:10:09,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:10:09,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 191 [2023-11-23 21:10:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:09,655 INFO L225 Difference]: With dead ends: 485 [2023-11-23 21:10:09,655 INFO L226 Difference]: Without dead ends: 317 [2023-11-23 21:10:09,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 556 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:10:09,657 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:09,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 305 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:10:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-23 21:10:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 187. [2023-11-23 21:10:09,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 124 states have internal predecessors, (177), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:10:09,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2023-11-23 21:10:09,693 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 191 [2023-11-23 21:10:09,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:09,694 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2023-11-23 21:10:09,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2023-11-23 21:10:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 21:10:09,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:09,698 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:09,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:09,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:10,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:10,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:10,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1881378154, now seen corresponding path program 1 times [2023-11-23 21:10:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428245175] [2023-11-23 21:10:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:10,109 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 21:10:10,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:10,110 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (8)] Waiting until timeout for monitored process [2023-11-23 21:10:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:10,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:10:10,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:11,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-23 21:10:11,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:11,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:11,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428245175] [2023-11-23 21:10:11,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428245175] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:11,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [253592459] [2023-11-23 21:10:11,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:11,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:11,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:11,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:11,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-23 21:10:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:12,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:10:12,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-23 21:10:12,909 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:12,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [253592459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:12,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:10:12,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2023-11-23 21:10:12,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422457205] [2023-11-23 21:10:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:12,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:10:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:10:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:10:12,911 INFO L87 Difference]: Start difference. First operand 187 states and 297 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:13,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:13,706 INFO L93 Difference]: Finished difference Result 476 states and 756 transitions. [2023-11-23 21:10:13,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:10:13,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 192 [2023-11-23 21:10:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:13,710 INFO L225 Difference]: With dead ends: 476 [2023-11-23 21:10:13,710 INFO L226 Difference]: Without dead ends: 290 [2023-11-23 21:10:13,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 559 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:10:13,712 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 76 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:13,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 270 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:10:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-23 21:10:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2023-11-23 21:10:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 194 states have (on average 1.422680412371134) internal successors, (276), 194 states have internal predecessors, (276), 90 states have call successors, (90), 3 states have call predecessors, (90), 3 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-23 21:10:13,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 456 transitions. [2023-11-23 21:10:13,752 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 456 transitions. Word has length 192 [2023-11-23 21:10:13,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:13,753 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 456 transitions. [2023-11-23 21:10:13,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:13,754 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 456 transitions. [2023-11-23 21:10:13,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 21:10:13,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:13,757 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:13,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (8)] Ended with exit code 0 [2023-11-23 21:10:13,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:14,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:14,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:14,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash 825241240, now seen corresponding path program 1 times [2023-11-23 21:10:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367999430] [2023-11-23 21:10:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:14,166 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 21:10:14,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:14,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:14,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (10)] Waiting until timeout for monitored process [2023-11-23 21:10:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:14,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:10:14,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-23 21:10:15,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:15,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:15,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367999430] [2023-11-23 21:10:15,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367999430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:15,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [215237730] [2023-11-23 21:10:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:15,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:15,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:15,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:15,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-23 21:10:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:16,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:10:16,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-23 21:10:17,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [215237730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:17,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:10:17,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 16 [2023-11-23 21:10:17,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113135899] [2023-11-23 21:10:17,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:17,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:17,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:10:17,864 INFO L87 Difference]: Start difference. First operand 288 states and 456 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:19,296 INFO L93 Difference]: Finished difference Result 1039 states and 1642 transitions. [2023-11-23 21:10:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:10:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 192 [2023-11-23 21:10:19,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:19,304 INFO L225 Difference]: With dead ends: 1039 [2023-11-23 21:10:19,305 INFO L226 Difference]: Without dead ends: 752 [2023-11-23 21:10:19,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:10:19,307 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 255 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:19,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 613 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 21:10:19,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-11-23 21:10:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 746. [2023-11-23 21:10:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 497 states have (on average 1.3983903420523138) internal successors, (695), 497 states have internal predecessors, (695), 240 states have call successors, (240), 8 states have call predecessors, (240), 8 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-23 21:10:19,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1175 transitions. [2023-11-23 21:10:19,431 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1175 transitions. Word has length 192 [2023-11-23 21:10:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:19,436 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1175 transitions. [2023-11-23 21:10:19,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 21:10:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1175 transitions. [2023-11-23 21:10:19,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 21:10:19,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:19,441 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:19,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:19,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:19,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:19,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:19,849 INFO L85 PathProgramCache]: Analyzing trace with hash 827088282, now seen corresponding path program 1 times [2023-11-23 21:10:19,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:19,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325417473] [2023-11-23 21:10:19,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:19,850 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 21:10:19,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:19,851 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:19,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (12)] Waiting until timeout for monitored process [2023-11-23 21:10:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:20,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:10:20,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-23 21:10:20,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:21,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:21,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325417473] [2023-11-23 21:10:21,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325417473] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:21,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1769872001] [2023-11-23 21:10:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:21,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:21,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:21,072 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:21,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-23 21:10:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:21,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:10:21,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 21:10:22,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:23,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1769872001] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:23,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591041814] [2023-11-23 21:10:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:23,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:23,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:23,170 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:10:23,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 21:10:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:23,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:10:23,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 21:10:24,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-23 21:10:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591041814] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:10:24,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:10:24,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12, 9, 12, 9] total 17 [2023-11-23 21:10:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150727004] [2023-11-23 21:10:24,548 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:10:24,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 21:10:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 21:10:24,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:10:24,551 INFO L87 Difference]: Start difference. First operand 746 states and 1175 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-11-23 21:10:26,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:26,581 INFO L93 Difference]: Finished difference Result 1601 states and 2420 transitions. [2023-11-23 21:10:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-23 21:10:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) Word has length 192 [2023-11-23 21:10:26,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:26,589 INFO L225 Difference]: With dead ends: 1601 [2023-11-23 21:10:26,590 INFO L226 Difference]: Without dead ends: 856 [2023-11-23 21:10:26,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1130 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2023-11-23 21:10:26,595 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 135 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:26,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 366 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:10:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-23 21:10:26,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 473. [2023-11-23 21:10:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 302 states have (on average 1.2549668874172186) internal successors, (379), 302 states have internal predecessors, (379), 150 states have call successors, (150), 20 states have call predecessors, (150), 20 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-23 21:10:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 679 transitions. [2023-11-23 21:10:26,688 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 679 transitions. Word has length 192 [2023-11-23 21:10:26,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:26,689 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 679 transitions. [2023-11-23 21:10:26,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 5 states have call successors, (75), 5 states have call predecessors, (75), 10 states have return successors, (77), 5 states have call predecessors, (77), 5 states have call successors, (77) [2023-11-23 21:10:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 679 transitions. [2023-11-23 21:10:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-23 21:10:26,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:26,691 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:26,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (12)] Ended with exit code 0 [2023-11-23 21:10:26,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:27,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:27,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:27,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:27,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:27,300 INFO L85 PathProgramCache]: Analyzing trace with hash -216447244, now seen corresponding path program 1 times [2023-11-23 21:10:27,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:27,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630261899] [2023-11-23 21:10:27,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:27,301 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 21:10:27,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:27,302 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 21:10:27,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/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 (15)] Waiting until timeout for monitored process [2023-11-23 21:10:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:27,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:10:27,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 396 proven. 225 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2023-11-23 21:10:29,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:29,608 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:29,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630261899] [2023-11-23 21:10:29,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630261899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:29,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [482045351] [2023-11-23 21:10:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:29,609 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:29,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:10:29,610 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:10:29,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-23 21:10:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:30,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:10:30,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 87 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-11-23 21:10:31,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:32,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [482045351] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:32,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316231453] [2023-11-23 21:10:32,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:32,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:10:32,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:32,125 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:10:32,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90f1e50-c5bc-4e4f-b7fa-f6ecf8e9c105/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 21:10:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:32,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:10:32,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 87 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-11-23 21:10:32,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:10:34,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316231453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:10:34,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:10:34,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 12 [2023-11-23 21:10:34,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608129520] [2023-11-23 21:10:34,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:10:34,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:10:34,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:10:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:10:34,671 INFO L87 Difference]: Start difference. First operand 473 states and 679 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 4 states have call successors, (55), 4 states have call predecessors, (55), 5 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56)