./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:33,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:33,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:12:33,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:33,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:33,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:33,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:33,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:33,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:33,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:33,433 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:33,434 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:33,434 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:33,435 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:12:33,435 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:33,436 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:33,436 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:12:33,437 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:12:33,437 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:33,438 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:12:33,438 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:12:33,439 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:12:33,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:33,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:33,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:33,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:12:33,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:33,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:33,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:33,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:33,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:33,443 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:33,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:33,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:33,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:33,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:33,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:33,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:33,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:33,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:33,445 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:12:33,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:12:33,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:33,446 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:33,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:33,447 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_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-19 04:12:33,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:33,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:33,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:33,766 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:33,766 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:33,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:36,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:37,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:37,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:37,277 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/4c41e9f98/a4303c41aed14fdaa1bc203121f18a85/FLAGd06b02aaa [2023-11-19 04:12:37,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/4c41e9f98/a4303c41aed14fdaa1bc203121f18a85 [2023-11-19 04:12:37,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:37,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:37,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:37,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:37,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:37,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fbe33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37, skipping insertion in model container [2023-11-19 04:12:37,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:37,566 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_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-19 04:12:37,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:37,686 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:37,698 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_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-19 04:12:37,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:37,762 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:37,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37 WrapperNode [2023-11-19 04:12:37,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:37,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:37,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:37,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:37,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,882 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2023-11-19 04:12:37,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:37,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:37,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:37,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:37,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:37,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:37,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:37,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:37,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (1/1) ... [2023-11-19 04:12:37,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:38,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:38,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:38,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:12:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:12:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:12:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:38,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:38,197 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:38,200 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:38,751 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:39,273 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:39,273 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:12:39,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:39 BoogieIcfgContainer [2023-11-19 04:12:39,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:39,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:39,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:39,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:39,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:37" (1/3) ... [2023-11-19 04:12:39,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b03df2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:39, skipping insertion in model container [2023-11-19 04:12:39,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:37" (2/3) ... [2023-11-19 04:12:39,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b03df2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:39, skipping insertion in model container [2023-11-19 04:12:39,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:39" (3/3) ... [2023-11-19 04:12:39,290 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:39,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:39,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:12:39,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:39,383 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;@742a965c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:39,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:12:39,388 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) [2023-11-19 04:12:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 04:12:39,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:39,403 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] [2023-11-19 04:12:39,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:39,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:39,409 INFO L85 PathProgramCache]: Analyzing trace with hash -348349528, now seen corresponding path program 1 times [2023-11-19 04:12:39,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:39,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732133484] [2023-11-19 04:12:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:39,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:39,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:12:39,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398837786] [2023-11-19 04:12:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:39,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:12:39,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:39,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:12:39,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:12:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:12:40,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:12:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:12:40,351 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:12:40,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:12:40,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:12:40,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 04:12:40,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:12:40,568 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:12:40,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:12:40,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:12:40 BoogieIcfgContainer [2023-11-19 04:12:40,714 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:12:40,715 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:12:40,715 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:12:40,715 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:12:40,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:39" (3/4) ... [2023-11-19 04:12:40,717 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:12:40,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:12:40,720 INFO L158 Benchmark]: Toolchain (without parser) took 3411.66ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 91.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,720 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 98.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:40,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.74ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 90.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.72ms. Allocated memory is still 151.0MB. Free memory was 90.3MB in the beginning and 84.8MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,722 INFO L158 Benchmark]: Boogie Preprocessor took 77.48ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 82.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,723 INFO L158 Benchmark]: RCFGBuilder took 1296.45ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 86.1MB in the end (delta: 35.1MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,724 INFO L158 Benchmark]: TraceAbstraction took 1432.39ms. Allocated memory is still 151.0MB. Free memory was 86.1MB in the beginning and 92.5MB in the end (delta: -6.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2023-11-19 04:12:40,724 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 91.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:40,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 98.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.74ms. Allocated memory is still 151.0MB. Free memory was 107.1MB in the beginning and 90.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.72ms. Allocated memory is still 151.0MB. Free memory was 90.3MB in the beginning and 84.8MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.48ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 82.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1296.45ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 86.1MB in the end (delta: 35.1MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1432.39ms. Allocated memory is still 151.0MB. Free memory was 86.1MB in the beginning and 92.5MB in the end (delta: -6.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 91.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 205, overapproximation of shiftLeft at line 131, overapproximation of someBinaryArithmeticFLOAToperation at line 132. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned short int var_1_3 = 36007; [L24] unsigned short int var_1_5 = 32; [L25] unsigned short int var_1_6 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 1; [L28] unsigned long int var_1_10 = 128; [L29] unsigned short int var_1_11 = 1; [L30] signed char var_1_12 = 50; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = 1; [L33] signed char var_1_15 = 0; [L34] signed char var_1_16 = -5; [L35] signed short int var_1_17 = -32; [L36] unsigned short int var_1_19 = 10; [L37] signed char var_1_20 = 2; [L38] signed char var_1_22 = 16; [L39] float var_1_23 = 3.225; [L40] unsigned char var_1_24 = 128; [L41] float var_1_25 = 127.875; [L42] float var_1_26 = 7.6; [L43] unsigned char var_1_27 = 1; [L44] unsigned char var_1_28 = 0; [L45] signed char var_1_29 = 32; [L46] unsigned char var_1_30 = 64; [L47] unsigned char var_1_31 = 64; [L48] unsigned char var_1_32 = 100; [L49] unsigned char var_1_33 = 2; [L50] unsigned char var_1_34 = 10; [L51] signed short int var_1_35 = 200; [L52] signed char var_1_36 = -10; [L53] unsigned long int last_1_var_1_10 = 128; [L54] unsigned short int last_1_var_1_11 = 1; [L55] unsigned char last_1_var_1_30 = 64; [L56] signed short int last_1_var_1_35 = 200; [L209] isInitial = 1 [L210] FCALL initially() [L211] COND TRUE 1 [L212] CALL updateLastVariables() [L199] last_1_var_1_10 = var_1_10 [L200] last_1_var_1_11 = var_1_11 [L201] last_1_var_1_30 = var_1_30 [L202] last_1_var_1_35 = var_1_35 [L212] RET updateLastVariables() [L213] CALL updateVariables() [L151] var_1_3 = __VERIFIER_nondet_ushort() [L152] CALL assume_abort_if_not(var_1_3 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_3 >= 32767) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L153] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=32, var_1_6=128, var_1_8=1, var_1_9=1] [L154] var_1_5 = __VERIFIER_nondet_ushort() [L155] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=128, var_1_11=1, var_1_12=50, var_1_13=-10, var_1_14=1, var_1_15=0, var_1_16=-5, var_1_17=-32, var_1_19=10, var_1_1=1, var_1_20=2, var_1_22=16, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, 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=64, 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=64, 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=64, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=128, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=1023/8, var_1_26=38/5, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=64, var_1_32=100, var_1_33=2, var_1_34=10, var_1_35=200, var_1_36=-10, var_1_3=32767, var_1_5=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=0, 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=0, var_1_23=129/40, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=1, var_1_28=0, var_1_29=32, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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 FALSE !(var_1_6 > var_1_30) [L115] var_1_11 = var_1_30 [L117] COND TRUE var_1_34 <= var_1_35 [L118] var_1_10 = (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))) [L124] unsigned short int stepLocal_1 = var_1_5; [L125] COND FALSE !(var_1_6 > stepLocal_1) [L128] signed short int stepLocal_3 = var_1_17; [L129] signed char stepLocal_2 = var_1_15; [L130] COND FALSE !(var_1_3 < stepLocal_3) [L135] var_1_23 = 15.79f [L137] unsigned char stepLocal_5 = var_1_27; [L138] unsigned short int stepLocal_4 = var_1_19; [L139] COND FALSE !(stepLocal_5 && var_1_27) [L144] var_1_29 = ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))) [L146] COND TRUE (var_1_30 * 1) <= (var_1_36 + var_1_11) [L147] var_1_20 = (var_1_14 - var_1_22) [L214] RET step() [L215] CALL, EXPR property() [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205] EXPR (var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)) [L205] EXPR (((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f))) [L205-L206] return (((((((((((((((! var_1_27) ? (var_1_27 ? (var_1_1 == ((unsigned short int) (var_1_3 - var_1_30))) : ((var_1_3 < (var_1_30 / (var_1_5 + var_1_6))) ? (var_1_1 == ((unsigned short int) var_1_34)) : 1)) : (var_1_1 == ((unsigned short int) var_1_34))) && ((var_1_34 > (var_1_3 - var_1_6)) ? (var_1_8 == ((unsigned char) (! (! 0)))) : (var_1_8 == ((unsigned char) (var_1_27 || var_1_9))))) && ((var_1_34 <= var_1_35) ? (var_1_10 == ((unsigned long int) (var_1_3 + ((((var_1_6) < (var_1_30)) ? (var_1_6) : (var_1_30)))))) : (var_1_27 ? (var_1_10 == ((unsigned long int) var_1_35)) : 1))) && ((var_1_6 > var_1_30) ? ((var_1_34 <= var_1_3) ? ((var_1_19 <= var_1_34) ? (var_1_11 == ((unsigned short int) (var_1_3 - 16))) : (var_1_11 == ((unsigned short int) var_1_6))) : (var_1_11 == ((unsigned short int) var_1_30))) : (var_1_11 == ((unsigned short int) var_1_30)))) && ((((((10) < 0 ) ? -(10) : (10))) > var_1_34) ? (var_1_12 == ((signed char) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_14))) : (var_1_12 == ((signed char) (var_1_15 + var_1_16))))) && ((var_1_6 > var_1_5) ? (var_1_17 == ((signed short int) (var_1_30 + ((((var_1_19) > (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))) ? (var_1_19) : (((((var_1_16) > (var_1_13)) ? (var_1_16) : (var_1_13))))))))) : 1)) && (var_1_8 ? (var_1_19 == ((unsigned short int) (var_1_34 + var_1_14))) : 1)) && (((var_1_30 * 1) <= (var_1_36 + var_1_11)) ? (var_1_20 == ((signed char) (var_1_14 - var_1_22))) : 1)) && ((var_1_3 < var_1_17) ? ((((var_1_24 - var_1_14) << var_1_35) >= var_1_15) ? (var_1_23 == ((float) (var_1_25 + var_1_26))) : 1) : (var_1_23 == ((float) 15.79f)))) && ((last_1_var_1_11 < last_1_var_1_35) ? (var_1_27 == ((unsigned char) (var_1_28 || (! var_1_9)))) : ((var_1_14 == var_1_6) ? (var_1_27 == ((unsigned char) var_1_28)) : (var_1_27 == ((unsigned char) var_1_28))))) && ((var_1_27 && var_1_27) ? ((var_1_1 < var_1_19) ? (var_1_29 == ((signed char) ((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))))) : 1) : (var_1_29 == ((signed char) ((((var_1_16) < (var_1_13)) ? (var_1_16) : (var_1_13))))))) && (((25 * (var_1_34 - var_1_24)) >= last_1_var_1_30) ? (var_1_30 == ((unsigned char) ((var_1_31 + 8) + (var_1_32 - var_1_33)))) : 1)) && ((-16 == last_1_var_1_10) ? (var_1_34 == ((unsigned char) ((((var_1_33) > (var_1_14)) ? (var_1_33) : (var_1_14))))) : 1)) && (var_1_35 == ((signed short int) var_1_32))) && (var_1_36 == ((signed char) var_1_33)) ; [L215] RET, EXPR property() [L215] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=128, last_1_var_1_11=1, last_1_var_1_30=64, last_1_var_1_35=200, var_1_10=32768, var_1_11=64, var_1_12=126, var_1_13=0, 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=1, var_1_22=0, var_1_23=1579/100, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=0, var_1_28=0, var_1_29=0, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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=32768, var_1_11=64, var_1_12=126, var_1_13=0, 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=1, var_1_22=0, var_1_23=1579/100, var_1_24=255, var_1_25=2, var_1_26=3, var_1_27=0, var_1_28=0, var_1_29=0, var_1_30=64, var_1_31=0, 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=64, var_1_6=1, 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, 0.4s 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 [2023-11-19 04:12:40,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:43,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:43,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:12:43,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:43,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:43,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:43,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:43,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:43,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:43,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:43,367 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:43,368 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:43,368 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:43,373 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:43,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:43,374 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:43,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:43,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:43,377 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:43,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:43,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:43,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:43,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:43,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:43,380 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:12:43,381 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:12:43,381 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:12:43,382 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:43,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:43,382 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:43,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:43,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:12:43,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:43,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:43,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:43,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:43,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:43,386 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:12:43,386 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:43,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:43,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:43,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:43,388 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_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2023-11-19 04:12:43,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:43,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:43,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:43,864 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:43,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:43,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:47,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:47,429 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:47,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:47,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/ce5533a72/89115a1a5a9f4827b3599a5ca24fd8b2/FLAG52bf3ac6e [2023-11-19 04:12:47,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/data/ce5533a72/89115a1a5a9f4827b3599a5ca24fd8b2 [2023-11-19 04:12:47,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:47,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:47,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:47,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:47,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:47,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:47,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@820f3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47, skipping insertion in model container [2023-11-19 04:12:47,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:47,528 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:47,692 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_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-19 04:12:47,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:47,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:47,843 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_07d18b90-0942-4dc3-bdb9-0194682313fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i[916,929] [2023-11-19 04:12:47,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:47,925 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:47,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47 WrapperNode [2023-11-19 04:12:47,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:47,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:47,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:47,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:47,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:47,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,028 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-11-19 04:12:48,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:48,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:48,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:48,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:48,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:48,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:48,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:48,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:48,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (1/1) ... [2023-11-19 04:12:48,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:48,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:48,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:48,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:12:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:12:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:48,375 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:48,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:49,227 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:49,243 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:49,243 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:12:49,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:49 BoogieIcfgContainer [2023-11-19 04:12:49,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:49,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:49,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:49,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:49,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:47" (1/3) ... [2023-11-19 04:12:49,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3505cf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:49, skipping insertion in model container [2023-11-19 04:12:49,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:47" (2/3) ... [2023-11-19 04:12:49,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3505cf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:49, skipping insertion in model container [2023-11-19 04:12:49,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:49" (3/3) ... [2023-11-19 04:12:49,260 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2023-11-19 04:12:49,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:49,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:12:49,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:49,355 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;@5a590276, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:49,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:12:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 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) [2023-11-19 04:12:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 04:12:49,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:49,393 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, 1, 1] [2023-11-19 04:12:49,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:49,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1000846304, now seen corresponding path program 1 times [2023-11-19 04:12:49,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:49,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214470220] [2023-11-19 04:12:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:49,430 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 [2023-11-19 04:12:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:49,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:12:49,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:49,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:12:49,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2023-11-19 04:12:50,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:50,031 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214470220] [2023-11-19 04:12:50,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214470220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:50,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:50,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:12:50,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077487060] [2023-11-19 04:12:50,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:50,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:12:50,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:12:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:12:50,093 INFO L87 Difference]: Start difference. First operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 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 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-11-19 04:12:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:50,133 INFO L93 Difference]: Finished difference Result 179 states and 316 transitions. [2023-11-19 04:12:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:12:50,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 195 [2023-11-19 04:12:50,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:50,147 INFO L225 Difference]: With dead ends: 179 [2023-11-19 04:12:50,147 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 04:12:50,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:12:50,156 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:50,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:12:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 04:12:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 04:12:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 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) [2023-11-19 04:12:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 139 transitions. [2023-11-19 04:12:50,220 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 139 transitions. Word has length 195 [2023-11-19 04:12:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:50,221 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 139 transitions. [2023-11-19 04:12:50,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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) [2023-11-19 04:12:50,221 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 139 transitions. [2023-11-19 04:12:50,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 04:12:50,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:50,227 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, 1, 1] [2023-11-19 04:12:50,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:50,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:50,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:50,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1877758236, now seen corresponding path program 1 times [2023-11-19 04:12:50,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:50,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561011734] [2023-11-19 04:12:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:50,440 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 [2023-11-19 04:12:50,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:50,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:12:50,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:50,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:12:50,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-19 04:12:51,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:51,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561011734] [2023-11-19 04:12:51,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561011734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:51,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:51,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93547272] [2023-11-19 04:12:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:51,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:12:51,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:51,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:12:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:51,779 INFO L87 Difference]: Start difference. First operand 89 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-19 04:12:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:52,653 INFO L93 Difference]: Finished difference Result 277 states and 433 transitions. [2023-11-19 04:12:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:12:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 195 [2023-11-19 04:12:52,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:52,669 INFO L225 Difference]: With dead ends: 277 [2023-11-19 04:12:52,670 INFO L226 Difference]: Without dead ends: 191 [2023-11-19 04:12:52,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:12:52,674 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 127 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:52,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 497 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:12:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-19 04:12:52,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 173. [2023-11-19 04:12:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 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) [2023-11-19 04:12:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 273 transitions. [2023-11-19 04:12:52,738 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 273 transitions. Word has length 195 [2023-11-19 04:12:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:52,740 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 273 transitions. [2023-11-19 04:12:52,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-19 04:12:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 273 transitions. [2023-11-19 04:12:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 04:12:52,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:52,746 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, 1, 1] [2023-11-19 04:12:52,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:52,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:52,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:52,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:52,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2096612954, now seen corresponding path program 1 times [2023-11-19 04:12:52,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:52,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809473234] [2023-11-19 04:12:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:52,950 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 [2023-11-19 04:12:52,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:52,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:12:52,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:53,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:12:53,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:54,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-19 04:12:54,281 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:12:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:12:54,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:54,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809473234] [2023-11-19 04:12:54,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809473234] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:12:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [66593360] [2023-11-19 04:12:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:54,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:12:54,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:12:54,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:12:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:55,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:12:55,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-19 04:12:55,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:55,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [66593360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:55,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:12:55,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 14 [2023-11-19 04:12:55,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648392089] [2023-11-19 04:12:55,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:55,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:55,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:55,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:12:55,506 INFO L87 Difference]: Start difference. First operand 173 states and 273 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-19 04:12:55,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:55,901 INFO L93 Difference]: Finished difference Result 513 states and 813 transitions. [2023-11-19 04:12:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:55,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 195 [2023-11-19 04:12:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:55,909 INFO L225 Difference]: With dead ends: 513 [2023-11-19 04:12:55,909 INFO L226 Difference]: Without dead ends: 343 [2023-11-19 04:12:55,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 569 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:12:55,931 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 133 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:55,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 372 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:12:55,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-19 04:12:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 175. [2023-11-19 04:12:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 112 states have (on average 1.3839285714285714) internal successors, (155), 112 states have internal predecessors, (155), 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) [2023-11-19 04:12:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 275 transitions. [2023-11-19 04:12:55,993 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 275 transitions. Word has length 195 [2023-11-19 04:12:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:55,994 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 275 transitions. [2023-11-19 04:12:55,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-19 04:12:55,995 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 275 transitions. [2023-11-19 04:12:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 04:12:56,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:56,001 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, 1, 1] [2023-11-19 04:12:56,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:56,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:56,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:56,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:56,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:56,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1085495704, now seen corresponding path program 1 times [2023-11-19 04:12:56,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:56,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499161258] [2023-11-19 04:12:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:56,414 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 [2023-11-19 04:12:56,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:56,417 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:12:56,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:56,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:12:56,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-19 04:12:57,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:12:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:12:58,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:58,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499161258] [2023-11-19 04:12:58,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499161258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:12:58,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [471174900] [2023-11-19 04:12:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:58,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:58,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:12:58,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:12:58,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:12:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:58,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:12:58,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-19 04:12:58,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:58,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [471174900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:58,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:12:58,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 15 [2023-11-19 04:12:58,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183594112] [2023-11-19 04:12:58,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:58,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:58,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:58,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:58,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:12:58,724 INFO L87 Difference]: Start difference. First operand 175 states and 275 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-19 04:12:59,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:59,186 INFO L93 Difference]: Finished difference Result 499 states and 786 transitions. [2023-11-19 04:12:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 195 [2023-11-19 04:12:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:59,199 INFO L225 Difference]: With dead ends: 499 [2023-11-19 04:12:59,199 INFO L226 Difference]: Without dead ends: 327 [2023-11-19 04:12:59,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 568 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:12:59,201 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 119 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:59,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 309 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:12:59,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-19 04:12:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 193. [2023-11-19 04:12:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 130 states have internal predecessors, (183), 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) [2023-11-19 04:12:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2023-11-19 04:12:59,238 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 195 [2023-11-19 04:12:59,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:59,239 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2023-11-19 04:12:59,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2023-11-19 04:12:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2023-11-19 04:12:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-19 04:12:59,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:59,243 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, 1, 1, 1] [2023-11-19 04:12:59,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:59,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:59,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:59,646 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:59,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:59,647 INFO L85 PathProgramCache]: Analyzing trace with hash 519114830, now seen corresponding path program 1 times [2023-11-19 04:12:59,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:59,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128316769] [2023-11-19 04:12:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:59,648 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 [2023-11-19 04:12:59,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:59,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:12:59,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:12:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:59,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:12:59,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-19 04:13:00,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:13:01,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128316769] [2023-11-19 04:13:01,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128316769] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:01,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [290588915] [2023-11-19 04:13:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:01,157 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:13:01,158 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:13:01,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:13:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:01,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:13:01,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:02,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-19 04:13:02,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:02,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [290588915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:02,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:13:02,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2023-11-19 04:13:02,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835041177] [2023-11-19 04:13:02,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:02,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:13:02,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:02,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:13:02,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:13:02,466 INFO L87 Difference]: Start difference. First operand 193 states and 303 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-19 04:13:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:03,219 INFO L93 Difference]: Finished difference Result 488 states and 768 transitions. [2023-11-19 04:13:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:13:03,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 196 [2023-11-19 04:13:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:03,230 INFO L225 Difference]: With dead ends: 488 [2023-11-19 04:13:03,231 INFO L226 Difference]: Without dead ends: 298 [2023-11-19 04:13:03,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 571 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:13:03,233 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 77 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:03,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 284 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:13:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-19 04:13:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2023-11-19 04:13:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 202 states have (on average 1.4059405940594059) internal successors, (284), 202 states have internal predecessors, (284), 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) [2023-11-19 04:13:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 464 transitions. [2023-11-19 04:13:03,299 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 464 transitions. Word has length 196 [2023-11-19 04:13:03,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:03,300 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 464 transitions. [2023-11-19 04:13:03,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-11-19 04:13:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 464 transitions. [2023-11-19 04:13:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-19 04:13:03,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:03,305 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, 1, 1, 1] [2023-11-19 04:13:03,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:03,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:03,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:03,713 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:03,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:03,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1475029876, now seen corresponding path program 1 times [2023-11-19 04:13:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:03,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439231299] [2023-11-19 04:13:03,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:03,715 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 [2023-11-19 04:13:03,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:03,716 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:13:03,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:04,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:13:04,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-19 04:13:04,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:13:05,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439231299] [2023-11-19 04:13:05,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439231299] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1651866118] [2023-11-19 04:13:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:05,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:13:05,462 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:13:05,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:13:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:06,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:13:06,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-11-19 04:13:07,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1651866118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:07,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:13:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 16 [2023-11-19 04:13:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832572859] [2023-11-19 04:13:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:07,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:13:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:13:07,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-19 04:13:07,524 INFO L87 Difference]: Start difference. First operand 296 states and 464 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-19 04:13:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:08,946 INFO L93 Difference]: Finished difference Result 1063 states and 1666 transitions. [2023-11-19 04:13:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:13:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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 196 [2023-11-19 04:13:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:08,957 INFO L225 Difference]: With dead ends: 1063 [2023-11-19 04:13:08,958 INFO L226 Difference]: Without dead ends: 770 [2023-11-19 04:13:08,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 570 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-11-19 04:13:08,960 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 261 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:08,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 640 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 04:13:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-19 04:13:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 764. [2023-11-19 04:13:09,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 515 states have (on average 1.3844660194174758) internal successors, (713), 515 states have internal predecessors, (713), 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) [2023-11-19 04:13:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1193 transitions. [2023-11-19 04:13:09,056 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1193 transitions. Word has length 196 [2023-11-19 04:13:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:09,057 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1193 transitions. [2023-11-19 04:13:09,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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) [2023-11-19 04:13:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1193 transitions. [2023-11-19 04:13:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-19 04:13:09,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:09,061 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, 1, 1, 1] [2023-11-19 04:13:09,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:09,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:09,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:09,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:09,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1417771574, now seen corresponding path program 1 times [2023-11-19 04:13:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700985050] [2023-11-19 04:13:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:09,471 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 [2023-11-19 04:13:09,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:09,472 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:13:09,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:09,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:13:09,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-11-19 04:13:10,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:13:10,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700985050] [2023-11-19 04:13:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700985050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:10,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [358381389] [2023-11-19 04:13:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:10,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:10,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:13:10,871 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:13:10,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 04:13:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:11,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 04:13:11,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-19 04:13:12,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:13:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [358381389] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:13,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571353654] [2023-11-19 04:13:13,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:13,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:13,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:13,071 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:13,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 04:13:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:13,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:13:13,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-19 04:13:14,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2023-11-19 04:13:14,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571353654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:13:14,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 04:13:14,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12, 9, 12, 9] total 17 [2023-11-19 04:13:14,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357089967] [2023-11-19 04:13:14,571 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 04:13:14,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 04:13:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:14,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 04:13:14,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:13:14,581 INFO L87 Difference]: Start difference. First operand 764 states and 1193 transitions. Second operand has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 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) [2023-11-19 04:13:17,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:17,017 INFO L93 Difference]: Finished difference Result 1636 states and 2455 transitions. [2023-11-19 04:13:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-19 04:13:17,019 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 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 196 [2023-11-19 04:13:17,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:17,031 INFO L225 Difference]: With dead ends: 1636 [2023-11-19 04:13:17,031 INFO L226 Difference]: Without dead ends: 875 [2023-11-19 04:13:17,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1154 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2023-11-19 04:13:17,037 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 256 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:17,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 528 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 04:13:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-19 04:13:17,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 485. [2023-11-19 04:13:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 314 states have (on average 1.2452229299363058) internal successors, (391), 314 states have internal predecessors, (391), 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) [2023-11-19 04:13:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 691 transitions. [2023-11-19 04:13:17,146 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 691 transitions. Word has length 196 [2023-11-19 04:13:17,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:17,147 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 691 transitions. [2023-11-19 04:13:17,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 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) [2023-11-19 04:13:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 691 transitions. [2023-11-19 04:13:17,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-19 04:13:17,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:17,151 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, 1, 1, 1, 1] [2023-11-19 04:13:17,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:17,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:17,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:17,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:17,766 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:17,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash 699134192, now seen corresponding path program 1 times [2023-11-19 04:13:17,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:17,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757537911] [2023-11-19 04:13:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:17,767 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 [2023-11-19 04:13:17,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:17,769 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:13:17,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:13:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:18,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 04:13:18,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 396 proven. 225 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2023-11-19 04:13:19,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:19,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757537911] [2023-11-19 04:13:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757537911] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1186012365] [2023-11-19 04:13:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:19,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:13:19,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:13:19,612 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:13:19,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 04:13:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:20,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:13:20,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 29 proven. 87 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-11-19 04:13:20,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:22,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1186012365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:22,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779385320] [2023-11-19 04:13:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:22,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:13:22,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:13:22,136 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:13:22,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07d18b90-0942-4dc3-bdb9-0194682313fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 04:13:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:22,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:13:22,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 366 proven. 159 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2023-11-19 04:13:23,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:13:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779385320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:13:23,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:13:23,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 9] total 13 [2023-11-19 04:13:23,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120353302] [2023-11-19 04:13:23,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 04:13:23,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 04:13:23,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:23,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 04:13:23,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-19 04:13:23,808 INFO L87 Difference]: Start difference. First operand 485 states and 691 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 4 states have call successors, (79), 4 states have call predecessors, (79), 6 states have return successors, (81), 3 states have call predecessors, (81), 4 states have call successors, (81)