./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 410a9989c425e67a684cc41a030ddcb789719d04c3f66db1da52362a37ac45cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:01,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:01,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:36:01,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:01,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:01,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:01,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:01,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:01,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:01,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:01,370 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:01,371 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:01,372 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:01,372 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:01,373 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:01,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:01,374 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:01,375 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:01,375 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:01,376 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:01,376 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:01,377 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:01,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:01,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:01,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:01,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:01,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:01,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:01,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:01,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:01,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:01,383 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:01,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:01,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:01,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:01,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:01,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:01,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:01,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:01,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:01,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:01,386 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:01,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:01,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:01,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:01,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:01,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:01,388 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 410a9989c425e67a684cc41a030ddcb789719d04c3f66db1da52362a37ac45cb [2023-11-23 20:36:01,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:01,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:01,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:01,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:01,781 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:01,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:04,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:05,224 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:05,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:05,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/956ab4425/74e7160e786e4ddd9eec4276b06d88ee/FLAG0e8dbf239 [2023-11-23 20:36:05,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/956ab4425/74e7160e786e4ddd9eec4276b06d88ee [2023-11-23 20:36:05,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:05,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:05,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:05,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:05,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:05,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4470557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05, skipping insertion in model container [2023-11-23 20:36:05,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,336 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:05,521 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i[916,929] [2023-11-23 20:36:05,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:05,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:05,643 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i[916,929] [2023-11-23 20:36:05,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:05,745 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:05,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05 WrapperNode [2023-11-23 20:36:05,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:05,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:05,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:05,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:05,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,839 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2023-11-23 20:36:05,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:05,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:05,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:05,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:05,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:05,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:05,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:05,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:05,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (1/1) ... [2023-11-23 20:36:05,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:05,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:05,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:05,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:36:06,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:36:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:06,148 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:06,151 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:06,817 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:07,248 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:07,249 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:07,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:07 BoogieIcfgContainer [2023-11-23 20:36:07,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:07,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:07,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:07,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:07,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:05" (1/3) ... [2023-11-23 20:36:07,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbe6718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:07, skipping insertion in model container [2023-11-23 20:36:07,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:05" (2/3) ... [2023-11-23 20:36:07,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbe6718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:07, skipping insertion in model container [2023-11-23 20:36:07,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:07" (3/3) ... [2023-11-23 20:36:07,261 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:07,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:07,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:07,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:07,347 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;@3b42833c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:07,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:07,352 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 20:36:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 20:36:07,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:07,366 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 20:36:07,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:07,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:07,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1869448620, now seen corresponding path program 1 times [2023-11-23 20:36:07,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:07,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952939415] [2023-11-23 20:36:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:07,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:07,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:36:07,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360632750] [2023-11-23 20:36:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:07,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:07,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:07,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:07,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:36:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:07,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:36:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:08,270 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:36:08,274 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:36:08,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:36:08,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:08,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:08,492 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:36:08,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:36:08,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:36:08 BoogieIcfgContainer [2023-11-23 20:36:08,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:36:08,707 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:36:08,707 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:36:08,708 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:36:08,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:07" (3/4) ... [2023-11-23 20:36:08,712 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:36:08,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:36:08,715 INFO L158 Benchmark]: Toolchain (without parser) took 3447.73ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 113.3MB in the beginning and 117.9MB in the end (delta: -4.7MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,716 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:08,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.95ms. Allocated memory is still 157.3MB. Free memory was 112.8MB in the beginning and 96.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.59ms. Allocated memory is still 157.3MB. Free memory was 96.0MB in the beginning and 90.7MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,723 INFO L158 Benchmark]: Boogie Preprocessor took 55.53ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,725 INFO L158 Benchmark]: RCFGBuilder took 1353.44ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 88.0MB in the beginning and 103.1MB in the end (delta: -15.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,726 INFO L158 Benchmark]: TraceAbstraction took 1453.72ms. Allocated memory is still 201.3MB. Free memory was 103.1MB in the beginning and 119.0MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:08,727 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 201.3MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:08,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.95ms. Allocated memory is still 157.3MB. Free memory was 112.8MB in the beginning and 96.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.59ms. Allocated memory is still 157.3MB. Free memory was 96.0MB in the beginning and 90.7MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.53ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1353.44ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 88.0MB in the beginning and 103.1MB in the end (delta: -15.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1453.72ms. Allocated memory is still 201.3MB. Free memory was 103.1MB in the beginning and 119.0MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 201.3MB. Free memory is still 117.9MB. 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 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. 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=32768, 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=32768, 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=32768, 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=32768, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=0, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32768, var_1_6=65, 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=63, var_1_14=1, 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=1, var_1_23=129/40, var_1_24=127, 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=0, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32768, var_1_6=65, 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 FALSE !(var_1_34 > (var_1_3 - var_1_6)) [L99] var_1_8 = (var_1_27 || var_1_9) [L101] COND TRUE \read(var_1_8) [L102] var_1_19 = (var_1_34 + var_1_14) [L104] COND TRUE var_1_34 <= var_1_35 [L105] var_1_10 = (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))) [L111] unsigned short int stepLocal_1 = var_1_5; [L112] COND FALSE !(var_1_6 > stepLocal_1) [L115] signed short int stepLocal_3 = var_1_17; [L116] signed char stepLocal_2 = var_1_15; [L117] COND FALSE !(var_1_3 < stepLocal_3) [L122] var_1_23 = 15.79f [L124] unsigned char stepLocal_5 = var_1_27; [L125] unsigned short int stepLocal_4 = var_1_19; [L126] COND FALSE !(stepLocal_5 && var_1_27) [L131] var_1_29 = ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))) [L133] COND TRUE var_1_6 > var_1_30 [L134] COND TRUE var_1_34 <= var_1_3 [L135] COND FALSE !(var_1_19 <= var_1_34) [L138] var_1_11 = var_1_6 [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=65, var_1_12=126, var_1_13=63, var_1_14=1, var_1_15=63, var_1_16=63, var_1_17=-32, var_1_19=11, var_1_1=1, var_1_20=0, var_1_22=1, var_1_23=1579/100, var_1_24=127, var_1_27=0, var_1_28=0, var_1_29=63, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=127, var_1_36=0, var_1_3=32767, var_1_5=32768, var_1_6=65, var_1_8=1, 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=65, var_1_12=126, var_1_13=63, var_1_14=1, var_1_15=63, var_1_16=63, var_1_17=-32, var_1_19=11, var_1_1=1, var_1_20=0, var_1_22=1, var_1_23=1579/100, var_1_24=127, var_1_27=0, var_1_28=0, var_1_29=63, var_1_30=64, var_1_31=64, var_1_32=127, var_1_33=0, var_1_34=10, var_1_35=127, var_1_36=0, var_1_3=32767, var_1_5=32768, var_1_6=65, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, 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, 0.3s 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 20:36:08,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 410a9989c425e67a684cc41a030ddcb789719d04c3f66db1da52362a37ac45cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:11,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:11,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:36:11,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:11,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:11,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:11,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:11,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:11,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:11,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:11,701 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:11,701 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:11,702 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:11,703 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:11,704 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:11,704 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:11,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:11,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:11,707 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:11,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:11,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:11,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:11,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:11,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:11,715 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:36:11,715 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:36:11,716 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:36:11,716 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:11,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:11,717 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:11,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:11,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:36:11,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:11,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:11,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:11,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:11,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:11,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:11,721 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:36:11,722 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:11,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:11,722 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:11,723 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:11,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:11,723 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 410a9989c425e67a684cc41a030ddcb789719d04c3f66db1da52362a37ac45cb [2023-11-23 20:36:12,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:12,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:12,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:12,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:12,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:12,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:15,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:15,592 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:15,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:15,604 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/8c8376549/6e46e2528c1a427d8d9acd5458a22334/FLAG6553b35e0 [2023-11-23 20:36:15,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/data/8c8376549/6e46e2528c1a427d8d9acd5458a22334 [2023-11-23 20:36:15,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:15,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:15,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:15,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:15,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:15,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e008ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15, skipping insertion in model container [2023-11-23 20:36:15,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,679 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:15,849 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i[916,929] [2023-11-23 20:36:15,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:15,983 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:16,002 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_66adef36-7e4c-4cb5-b0db-b9179b3800de/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-26.i[916,929] [2023-11-23 20:36:16,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:16,138 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:16,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16 WrapperNode [2023-11-23 20:36:16,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:16,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:16,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:16,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:16,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,234 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-11-23 20:36:16,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:16,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:16,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:16,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:16,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:16,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:16,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:16,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:16,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (1/1) ... [2023-11-23 20:36:16,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:16,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:16,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:36:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:36:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:36:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:16,509 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:16,511 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:17,381 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:17,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:17,483 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:17,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:17 BoogieIcfgContainer [2023-11-23 20:36:17,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:17,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:17,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:17,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:17,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:15" (1/3) ... [2023-11-23 20:36:17,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fceacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:17, skipping insertion in model container [2023-11-23 20:36:17,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:16" (2/3) ... [2023-11-23 20:36:17,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fceacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:17, skipping insertion in model container [2023-11-23 20:36:17,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:17" (3/3) ... [2023-11-23 20:36:17,496 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-26.i [2023-11-23 20:36:17,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:17,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:17,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:17,586 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;@153654f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:17,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:17,591 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 20:36:17,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 20:36:17,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:17,616 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 20:36:17,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash 241241192, now seen corresponding path program 1 times [2023-11-23 20:36:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715993232] [2023-11-23 20:36:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:17,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:17,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:17,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:17,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:36:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:18,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:36:18,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:18,162 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 20:36:18,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:18,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:18,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715993232] [2023-11-23 20:36:18,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715993232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:18,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:18,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:18,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605413609] [2023-11-23 20:36:18,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:18,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:36:18,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:36:18,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:18,241 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 20:36:18,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:18,522 INFO L93 Difference]: Finished difference Result 171 states and 308 transitions. [2023-11-23 20:36:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:36:18,532 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 20:36:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:18,540 INFO L225 Difference]: With dead ends: 171 [2023-11-23 20:36:18,541 INFO L226 Difference]: Without dead ends: 85 [2023-11-23 20:36:18,545 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 20:36:18,549 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 20:36:18,550 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 20:36:18,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-23 20:36:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-23 20:36:18,599 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 20:36:18,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 135 transitions. [2023-11-23 20:36:18,603 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 135 transitions. Word has length 191 [2023-11-23 20:36:18,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:18,604 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 135 transitions. [2023-11-23 20:36:18,604 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 20:36:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2023-11-23 20:36:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 20:36:18,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:18,611 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 20:36:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:18,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:18,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:18,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1442478060, now seen corresponding path program 1 times [2023-11-23 20:36:18,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:18,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739235870] [2023-11-23 20:36:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:18,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:18,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:18,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:36:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:19,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:36:19,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:19,910 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 20:36:19,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:19,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739235870] [2023-11-23 20:36:19,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739235870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:19,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:19,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:36:19,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529814412] [2023-11-23 20:36:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:19,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:19,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:36:19,915 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 20:36:20,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:20,628 INFO L93 Difference]: Finished difference Result 271 states and 430 transitions. [2023-11-23 20:36:20,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:20,637 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 20:36:20,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:20,642 INFO L225 Difference]: With dead ends: 271 [2023-11-23 20:36:20,642 INFO L226 Difference]: Without dead ends: 187 [2023-11-23 20:36:20,644 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 20:36:20,645 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 165 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:20,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 446 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 20:36:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-23 20:36:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 167. [2023-11-23 20:36:20,697 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 20:36:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 267 transitions. [2023-11-23 20:36:20,702 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 267 transitions. Word has length 191 [2023-11-23 20:36:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:20,703 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 267 transitions. [2023-11-23 20:36:20,704 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 20:36:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 267 transitions. [2023-11-23 20:36:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 20:36:20,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:20,709 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 20:36:20,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:20,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:20,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:20,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1865179886, now seen corresponding path program 1 times [2023-11-23 20:36:20,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:20,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820207305] [2023-11-23 20:36:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:20,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:20,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:20,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:20,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:21,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:36:21,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:22,126 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 20:36:22,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:22,676 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 20:36:22,677 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820207305] [2023-11-23 20:36:22,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820207305] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:22,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113308835] [2023-11-23 20:36:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:22,681 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:22,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:22,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:22,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-23 20:36:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:23,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:36:23,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:23,093 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 20:36:23,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:23,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1113308835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:23,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:36:23,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 14 [2023-11-23 20:36:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361100675] [2023-11-23 20:36:23,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:23,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:23,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:23,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-23 20:36:23,098 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 20:36:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:23,338 INFO L93 Difference]: Finished difference Result 499 states and 799 transitions. [2023-11-23 20:36:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:23,339 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 20:36:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:23,344 INFO L225 Difference]: With dead ends: 499 [2023-11-23 20:36:23,345 INFO L226 Difference]: Without dead ends: 333 [2023-11-23 20:36:23,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 557 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-23 20:36:23,348 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 20:36:23,349 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 20:36:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-23 20:36:23,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 169. [2023-11-23 20:36:23,401 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 20:36:23,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 269 transitions. [2023-11-23 20:36:23,404 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 269 transitions. Word has length 191 [2023-11-23 20:36:23,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:23,405 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 269 transitions. [2023-11-23 20:36:23,406 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 20:36:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 269 transitions. [2023-11-23 20:36:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 20:36:23,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:23,410 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 20:36:23,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:23,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:23,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:23,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:23,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1278373872, now seen corresponding path program 1 times [2023-11-23 20:36:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884675875] [2023-11-23 20:36:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:23,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:23,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:23,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:23,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:24,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:36:24,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:24,841 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 20:36:24,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:25,380 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 20:36:25,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:25,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884675875] [2023-11-23 20:36:25,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884675875] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418825737] [2023-11-23 20:36:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:25,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:25,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:25,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:25,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 20:36:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:25,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:36:25,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:25,852 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 20:36:25,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:25,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1418825737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:25,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:36:25,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 15 [2023-11-23 20:36:25,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621907604] [2023-11-23 20:36:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:25,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:36:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:25,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:36:25,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:36:25,856 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 20:36:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:26,379 INFO L93 Difference]: Finished difference Result 488 states and 778 transitions. [2023-11-23 20:36:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:36:26,380 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 20:36:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:26,385 INFO L225 Difference]: With dead ends: 488 [2023-11-23 20:36:26,385 INFO L226 Difference]: Without dead ends: 320 [2023-11-23 20:36:26,387 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 20:36:26,388 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 128 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:26,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 295 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 20:36:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-23 20:36:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 184. [2023-11-23 20:36:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 121 states have (on average 1.4132231404958677) internal successors, (171), 121 states have internal predecessors, (171), 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 20:36:26,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2023-11-23 20:36:26,428 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 191 [2023-11-23 20:36:26,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:26,429 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2023-11-23 20:36:26,429 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 20:36:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2023-11-23 20:36:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 20:36:26,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:26,433 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 20:36:26,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:26,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:26,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:26,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:26,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1799819934, now seen corresponding path program 1 times [2023-11-23 20:36:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:26,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335388277] [2023-11-23 20:36:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:26,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:26,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:26,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:27,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:36:27,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:27,903 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 20:36:27,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:28,446 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 20:36:28,447 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335388277] [2023-11-23 20:36:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335388277] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [55786021] [2023-11-23 20:36:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:28,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:28,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:28,449 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:28,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-23 20:36:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:29,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:36:29,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:29,834 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 20:36:29,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:29,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [55786021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:36:29,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2023-11-23 20:36:29,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962379259] [2023-11-23 20:36:29,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:29,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:36:29,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:29,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:36:29,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:36:29,838 INFO L87 Difference]: Start difference. First operand 184 states and 291 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 20:36:30,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:30,570 INFO L93 Difference]: Finished difference Result 467 states and 738 transitions. [2023-11-23 20:36:30,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:36:30,571 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 20:36:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:30,575 INFO L225 Difference]: With dead ends: 467 [2023-11-23 20:36:30,576 INFO L226 Difference]: Without dead ends: 284 [2023-11-23 20:36:30,577 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 20:36:30,578 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 76 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:30,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 270 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 20:36:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-23 20:36:30,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 282. [2023-11-23 20:36:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 188 states have (on average 1.4042553191489362) internal successors, (264), 188 states have internal predecessors, (264), 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 20:36:30,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 444 transitions. [2023-11-23 20:36:30,641 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 444 transitions. Word has length 192 [2023-11-23 20:36:30,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:30,642 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 444 transitions. [2023-11-23 20:36:30,643 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 20:36:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 444 transitions. [2023-11-23 20:36:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 20:36:30,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:30,646 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 20:36:30,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:30,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-23 20:36:31,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:31,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:31,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 211472032, now seen corresponding path program 1 times [2023-11-23 20:36:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362289486] [2023-11-23 20:36:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:31,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:31,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:31,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:31,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:36:31,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:31,973 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 20:36:31,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:32,573 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 20:36:32,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362289486] [2023-11-23 20:36:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362289486] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [989973513] [2023-11-23 20:36:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:32,576 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:32,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:32,578 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:32,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-23 20:36:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:33,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:33,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:34,851 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 20:36:34,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:34,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [989973513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:34,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:36:34,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 16 [2023-11-23 20:36:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84646054] [2023-11-23 20:36:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:34,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:34,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:34,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 20:36:34,855 INFO L87 Difference]: Start difference. First operand 282 states and 444 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 20:36:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:36,689 INFO L93 Difference]: Finished difference Result 1021 states and 1606 transitions. [2023-11-23 20:36:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:36:36,690 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 20:36:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:36,699 INFO L225 Difference]: With dead ends: 1021 [2023-11-23 20:36:36,700 INFO L226 Difference]: Without dead ends: 740 [2023-11-23 20:36:36,702 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 20:36:36,705 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 268 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:36,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 618 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 20:36:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-11-23 20:36:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 734. [2023-11-23 20:36:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 485 states have (on average 1.3876288659793814) internal successors, (673), 485 states have internal predecessors, (673), 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 20:36:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1153 transitions. [2023-11-23 20:36:36,834 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1153 transitions. Word has length 192 [2023-11-23 20:36:36,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:36,839 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1153 transitions. [2023-11-23 20:36:36,840 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 20:36:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1153 transitions. [2023-11-23 20:36:36,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 20:36:36,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:36,844 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 20:36:36,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-11-23 20:36:37,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:37,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:37,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:37,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:37,251 INFO L85 PathProgramCache]: Analyzing trace with hash 268730334, now seen corresponding path program 1 times [2023-11-23 20:36:37,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:37,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930512999] [2023-11-23 20:36:37,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:37,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:37,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:37,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:37,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:37,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:36:37,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:38,170 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 20:36:38,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:38,580 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 20:36:38,580 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:38,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930512999] [2023-11-23 20:36:38,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930512999] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:38,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1838445123] [2023-11-23 20:36:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:38,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:38,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:38,585 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:38,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-23 20:36:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:39,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 20:36:39,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:40,149 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 20:36:40,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:40,542 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 20:36:40,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1838445123] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:40,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536558737] [2023-11-23 20:36:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:40,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:40,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:40,549 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:40,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 20:36:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:40,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:36:40,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:41,551 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 20:36:41,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:41,957 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 20:36:41,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536558737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:41,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:36:41,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12, 9, 12, 9] total 17 [2023-11-23 20:36:41,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942228414] [2023-11-23 20:36:41,959 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:36:41,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-23 20:36:41,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:41,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 20:36:41,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-23 20:36:41,965 INFO L87 Difference]: Start difference. First operand 734 states and 1153 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 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 20:36:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:44,211 INFO L93 Difference]: Finished difference Result 1589 states and 2398 transitions. [2023-11-23 20:36:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-23 20:36:44,212 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 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 20:36:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:44,220 INFO L225 Difference]: With dead ends: 1589 [2023-11-23 20:36:44,221 INFO L226 Difference]: Without dead ends: 856 [2023-11-23 20:36:44,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1130 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2023-11-23 20:36:44,226 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 246 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:44,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 417 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 20:36:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-23 20:36:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 473. [2023-11-23 20:36:44,308 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 20:36:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 679 transitions. [2023-11-23 20:36:44,313 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 679 transitions. Word has length 192 [2023-11-23 20:36:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:44,313 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 679 transitions. [2023-11-23 20:36:44,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 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 20:36:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 679 transitions. [2023-11-23 20:36:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-23 20:36:44,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:44,316 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 20:36:44,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:44,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:44,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:44,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:44,925 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:44,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1378982504, now seen corresponding path program 1 times [2023-11-23 20:36:44,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:44,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927484295] [2023-11-23 20:36:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:44,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:44,927 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:44,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/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 20:36:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:45,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 20:36:45,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:46,742 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 20:36:46,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:47,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:47,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927484295] [2023-11-23 20:36:47,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927484295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:36:47,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [164058941] [2023-11-23 20:36:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:47,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:47,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:47,021 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:47,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-23 20:36:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:47,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:47,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:48,374 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 20:36:48,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:49,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [164058941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:36:49,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422843276] [2023-11-23 20:36:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:49,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:49,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:49,670 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:49,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66adef36-7e4c-4cb5-b0db-b9179b3800de/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 20:36:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:49,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:36:49,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:50,423 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 20:36:50,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:52,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422843276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:36:52,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 20:36:52,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 12 [2023-11-23 20:36:52,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100086653] [2023-11-23 20:36:52,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 20:36:52,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 20:36:52,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:52,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 20:36:52,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-23 20:36:52,744 INFO L87 Difference]: Start difference. First operand 473 states and 679 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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)