./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3471d5ae5f1099f9615a7bd6584823d63dd4d8febcf8f5494b59eb9e166fe71 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:28,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:29,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:36:29,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:29,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:29,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:29,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:29,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:29,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:29,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:29,091 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:29,092 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:29,093 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:29,094 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:29,095 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:29,095 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:29,096 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:29,096 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:29,096 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:29,097 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:29,097 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:29,098 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:29,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:29,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:29,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:29,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:29,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:29,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:29,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:29,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:29,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:29,104 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:29,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:29,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:29,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:29,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:29,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:29,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:29,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:29,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:29,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:29,107 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:29,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:29,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:29,108 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:29,108 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:29,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:29,108 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3471d5ae5f1099f9615a7bd6584823d63dd4d8febcf8f5494b59eb9e166fe71 [2023-11-23 20:36:29,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:29,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:29,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:29,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:29,479 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:29,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:32,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:32,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:32,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:32,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/4d3f80e35/3cc98942429248b39eb80b4d13d41344/FLAGb3be7dc6b [2023-11-23 20:36:33,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/4d3f80e35/3cc98942429248b39eb80b4d13d41344 [2023-11-23 20:36:33,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:33,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:33,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:33,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:33,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:33,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5f3a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33, skipping insertion in model container [2023-11-23 20:36:33,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,064 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:33,216 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i[919,932] [2023-11-23 20:36:33,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:33,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:33,342 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i[919,932] [2023-11-23 20:36:33,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:33,399 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:33,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33 WrapperNode [2023-11-23 20:36:33,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:33,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:33,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:33,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:33,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,482 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 173 [2023-11-23 20:36:33,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:33,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:33,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:33,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:33,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:33,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:33,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:33,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:33,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (1/1) ... [2023-11-23 20:36:33,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:33,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:33,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:33,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:36:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:36:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:33,790 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:33,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:34,462 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:34,760 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:34,761 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:34,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:34 BoogieIcfgContainer [2023-11-23 20:36:34,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:34,774 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:34,774 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:34,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:34,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:33" (1/3) ... [2023-11-23 20:36:34,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1449fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:34, skipping insertion in model container [2023-11-23 20:36:34,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:33" (2/3) ... [2023-11-23 20:36:34,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1449fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:34, skipping insertion in model container [2023-11-23 20:36:34,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:34" (3/3) ... [2023-11-23 20:36:34,782 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:34,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:34,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:34,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:34,860 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;@6d9dbe9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:34,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 20:36:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 20:36:34,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:34,875 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:34,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:34,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:34,881 INFO L85 PathProgramCache]: Analyzing trace with hash -629309199, now seen corresponding path program 1 times [2023-11-23 20:36:34,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:34,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44230954] [2023-11-23 20:36:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:34,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:35,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:36:35,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710465306] [2023-11-23 20:36:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:35,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:35,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:35,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:35,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:36:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:35,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:36:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:35,442 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:36:35,445 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:36:35,446 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:36:35,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:35,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:36:35,673 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:36:35,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:36:35,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:36:35 BoogieIcfgContainer [2023-11-23 20:36:35,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:36:35,774 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:36:35,774 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:36:35,774 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:36:35,775 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:34" (3/4) ... [2023-11-23 20:36:35,777 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:36:35,778 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:36:35,779 INFO L158 Benchmark]: Toolchain (without parser) took 2768.43ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 87.2MB in the beginning and 138.5MB in the end (delta: -51.3MB). Peak memory consumption was 595.2kB. Max. memory is 16.1GB. [2023-11-23 20:36:35,780 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:35,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.36ms. Allocated memory is still 134.2MB. Free memory was 87.2MB in the beginning and 72.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:35,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.31ms. Allocated memory is still 134.2MB. Free memory was 72.0MB in the beginning and 67.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:36:35,782 INFO L158 Benchmark]: Boogie Preprocessor took 68.16ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 64.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:36:35,783 INFO L158 Benchmark]: RCFGBuilder took 1218.86ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 64.8MB in the beginning and 110.7MB in the end (delta: -45.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-11-23 20:36:35,783 INFO L158 Benchmark]: TraceAbstraction took 999.61ms. Allocated memory is still 184.5MB. Free memory was 109.6MB in the beginning and 138.5MB in the end (delta: -28.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-23 20:36:35,784 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 184.5MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:35,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.36ms. Allocated memory is still 134.2MB. Free memory was 87.2MB in the beginning and 72.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.31ms. Allocated memory is still 134.2MB. Free memory was 72.0MB in the beginning and 67.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.16ms. Allocated memory is still 134.2MB. Free memory was 67.4MB in the beginning and 64.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1218.86ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 64.8MB in the beginning and 110.7MB in the end (delta: -45.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 999.61ms. Allocated memory is still 184.5MB. Free memory was 109.6MB in the beginning and 138.5MB in the end (delta: -28.8MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 184.5MB. Free memory is still 138.5MB. 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 58, overapproximation of bitwiseOr at line 81, overapproximation of someUnaryDOUBLEoperation at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of someUnaryFLOAToperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] signed short int var_1_4 = -200; [L24] unsigned short int var_1_8 = 5; [L25] unsigned char var_1_9 = 1; [L26] unsigned char var_1_10 = 0; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 16; [L29] unsigned char var_1_15 = 50; [L30] unsigned short int var_1_16 = 1; [L31] float var_1_17 = 25.4; [L32] float var_1_20 = 1.6; [L33] unsigned short int var_1_21 = 0; [L34] float var_1_24 = 128.5; [L35] double var_1_25 = -0.5; [L36] signed long int var_1_26 = 4; [L37] signed char var_1_27 = 2; [L38] signed char var_1_28 = -16; [L39] signed char var_1_29 = 0; [L40] unsigned char var_1_30 = 0; [L41] unsigned long int var_1_34 = 50; [L42] double var_1_35 = 31.1; [L43] unsigned long int var_1_37 = 64; [L44] signed long int var_1_38 = 8; [L45] float var_1_39 = 200.6; [L46] unsigned short int var_1_40 = 2; [L47] signed char var_1_42 = -4; [L48] double var_1_43 = 2.75; [L49] signed char var_1_45 = 32; [L50] unsigned long int var_1_46 = 32; [L51] signed long int var_1_47 = -256; [L52] unsigned char last_1_var_1_9 = 1; [L53] float last_1_var_1_24 = 128.5; [L164] isInitial = 1 [L165] FCALL initially() [L166] COND TRUE 1 [L167] CALL updateLastVariables() [L156] last_1_var_1_9 = var_1_9 [L157] last_1_var_1_24 = var_1_24 [L167] RET updateLastVariables() [L168] CALL updateVariables() [L127] var_1_4 = __VERIFIER_nondet_short() [L128] CALL assume_abort_if_not(var_1_4 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_4 >= -32768) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L129] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L130] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=5, var_1_9=1] [L131] var_1_8 = __VERIFIER_nondet_ushort() [L132] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_9=1] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_9=1] [L133] CALL assume_abort_if_not(var_1_8 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_8 <= 32767) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L134] var_1_10 = __VERIFIER_nondet_uchar() [L135] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L136] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L137] var_1_11 = __VERIFIER_nondet_uchar() [L138] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L139] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=50, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L140] var_1_15 = __VERIFIER_nondet_uchar() [L141] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L142] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_20=8/5, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L143] var_1_20 = __VERIFIER_nondet_float() [L144] CALL assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not((var_1_20 >= -922337.2036854765600e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854765600e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=-16, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L145] var_1_28 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_28 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_28 >= -126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L147] CALL assume_abort_if_not(var_1_28 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_28 <= 126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L148] var_1_29 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_29 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_29 >= 0) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L150] CALL assume_abort_if_not(var_1_29 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_29 <= 126) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_39=1003/5, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L151] var_1_39 = __VERIFIER_nondet_float() [L152] CALL assume_abort_if_not((var_1_39 >= -922337.2036854776000e+13F && var_1_39 <= -1.0e-20F) || (var_1_39 <= 9223372.036854776000e+12F && var_1_39 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not((var_1_39 >= -922337.2036854776000e+13F && var_1_39 <= -1.0e-20F) || (var_1_39 <= 9223372.036854776000e+12F && var_1_39 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L153] CALL assume_abort_if_not(var_1_39 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not(var_1_39 != 0.0F) VAL [isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=16, var_1_15=2, var_1_16=1, var_1_17=127/5, var_1_1=128, var_1_21=0, var_1_24=257/2, var_1_26=4, var_1_27=2, var_1_28=8, var_1_29=0, var_1_30=0, var_1_34=50, var_1_35=311/10, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=11/4, var_1_45=32, var_1_46=32, var_1_47=-256, var_1_4=2, var_1_8=3, var_1_9=1] [L168] RET updateVariables() [L169] CALL step() [L57] COND FALSE !((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) [L64] var_1_12 = var_1_15 [L66] COND FALSE !(var_1_11 || var_1_10) [L69] unsigned char stepLocal_1 = var_1_10; [L70] COND FALSE !((var_1_12 != var_1_4) || stepLocal_1) [L73] COND TRUE var_1_9 && var_1_9 [L74] var_1_30 = (((((((var_1_29) > (var_1_15)) ? (var_1_29) : (var_1_15))) < 0 ) ? -((((var_1_29) > (var_1_15)) ? (var_1_29) : (var_1_15))) : ((((var_1_29) > (var_1_15)) ? (var_1_29) : (var_1_15))))) [L76] var_1_35 = var_1_20 [L77] var_1_26 = var_1_12 [L78] COND FALSE !((var_1_11 && var_1_9) && (var_1_12 > var_1_16)) [L81] EXPR var_1_8 | var_1_12 [L81] COND TRUE var_1_28 > (var_1_8 | var_1_12) [L82] var_1_43 = ((((var_1_20) > ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) < 0 ) ? -((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) : ((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))))))) ? (var_1_20) : ((((((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) < 0 ) ? -((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20))) : ((((var_1_20) < 0 ) ? -(var_1_20) : (var_1_20)))))))) [L84] COND FALSE !((var_1_9 && var_1_11) && var_1_9) [L87] var_1_21 = ((23370 - var_1_15) + var_1_12) [L89] var_1_27 = (((((var_1_28) < 0 ) ? -(var_1_28) : (var_1_28))) - var_1_29) [L90] COND TRUE (((((var_1_20 / var_1_39)) > (var_1_24)) ? ((var_1_20 / var_1_39)) : (var_1_24))) > 100.3 [L91] COND TRUE (var_1_15 - var_1_29) >= var_1_12 [L92] var_1_38 = ((((var_1_28) > (((((-5) < 0 ) ? -(-5) : (-5))))) ? (var_1_28) : (((((-5) < 0 ) ? -(-5) : (-5)))))) [L95] signed long int stepLocal_2 = -4; [L96] COND FALSE !(! (-4 < var_1_12)) [L99] COND FALSE !(stepLocal_2 > var_1_21) [L103] var_1_16 = (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15))) [L104] var_1_46 = var_1_15 [L105] var_1_25 = var_1_20 [L106] COND TRUE var_1_28 > var_1_12 [L107] COND FALSE !(var_1_29 >= var_1_12) [L111] unsigned short int stepLocal_0 = var_1_16; [L112] COND TRUE ((var_1_16 * var_1_16) / var_1_4) <= stepLocal_0 [L113] var_1_1 = var_1_12 [L117] COND FALSE !(var_1_12 > ((var_1_29 >> 1) + var_1_15)) [L120] var_1_47 = var_1_4 [L121] COND FALSE !((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) [L124] var_1_45 = var_1_28 [L169] RET step() [L170] CALL, EXPR property() [L160-L161] return (((((((((((var_1_16 * var_1_16) / var_1_4) <= var_1_16) ? (var_1_1 == ((unsigned short int) var_1_12)) : (var_1_1 == ((unsigned short int) (var_1_12 + var_1_12)))) && (((var_1_12 != var_1_4) || var_1_10) ? (var_1_9 == ((unsigned char) var_1_11)) : 1)) && (((last_1_var_1_9 && var_1_11) && (50 > var_1_8)) ? (((- last_1_var_1_24) < last_1_var_1_24) ? (last_1_var_1_9 ? (var_1_12 == ((unsigned char) 5)) : 1) : 1) : (var_1_12 == ((unsigned char) var_1_15)))) && (var_1_16 == ((unsigned short int) (((((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) < (var_1_15)) ? ((((((256) > (var_1_12)) ? (256) : (var_1_12))) + var_1_12)) : (var_1_15)))))) && (((var_1_16 - ((((var_1_1) < 0 ) ? -(var_1_1) : (var_1_1)))) < (var_1_12 - var_1_16)) ? (var_1_17 == ((float) var_1_20)) : 1)) && (((var_1_9 && var_1_11) && var_1_9) ? (var_1_21 == ((unsigned short int) (var_1_26 + (var_1_15 + ((((var_1_12) > (var_1_12)) ? (var_1_12) : (var_1_12))))))) : (var_1_21 == ((unsigned short int) ((23370 - var_1_15) + var_1_12))))) && ((! (-4 < var_1_12)) ? (var_1_24 == ((float) var_1_20)) : ((-4 > var_1_21) ? (var_1_24 == ((float) 10.6f)) : 1))) && (var_1_25 == ((double) var_1_20))) && (var_1_26 == ((signed long int) var_1_12)) ; [L170] RET, EXPR property() [L170] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_27=8, var_1_28=8, var_1_29=0, var_1_30=2, var_1_34=50, var_1_35=2, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=2, var_1_45=8, var_1_46=2, var_1_47=2, var_1_4=2, var_1_8=3, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=257/2, last_1_var_1_9=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_15=2, var_1_16=2, var_1_17=127/5, var_1_1=2, var_1_20=2, var_1_21=23370, var_1_24=257/2, var_1_25=2, var_1_26=2, var_1_27=8, var_1_28=8, var_1_29=0, var_1_30=2, var_1_34=50, var_1_35=2, var_1_37=64, var_1_38=8, var_1_40=2, var_1_42=-4, var_1_43=2, var_1_45=8, var_1_46=2, var_1_47=2, var_1_4=2, var_1_8=3, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 18, 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=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:36:35,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3471d5ae5f1099f9615a7bd6584823d63dd4d8febcf8f5494b59eb9e166fe71 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:38,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:38,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:36:38,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:38,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:38,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:38,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:38,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:38,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:38,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:38,570 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:38,570 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:38,571 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:38,573 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:38,573 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:38,574 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:38,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:38,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:38,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:38,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:38,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:38,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:38,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:38,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:38,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:36:38,579 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:36:38,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:36:38,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:38,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:38,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:38,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:38,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:36:38,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:38,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:38,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:38,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:38,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:38,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:38,585 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:36:38,586 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:38,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:38,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:38,587 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:38,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:38,588 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3471d5ae5f1099f9615a7bd6584823d63dd4d8febcf8f5494b59eb9e166fe71 [2023-11-23 20:36:38,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:39,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:39,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:39,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:39,025 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:39,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:42,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:42,464 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:42,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:42,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/600477f27/f3888686be134ae5b189186c2897a3d8/FLAGde31c0f94 [2023-11-23 20:36:42,499 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/data/600477f27/f3888686be134ae5b189186c2897a3d8 [2023-11-23 20:36:42,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:42,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:42,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:42,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:42,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:42,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:42,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef41711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42, skipping insertion in model container [2023-11-23 20:36:42,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:42,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:42,740 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i[919,932] [2023-11-23 20:36:42,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:42,870 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:42,888 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_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i[919,932] [2023-11-23 20:36:42,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:42,991 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:42,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42 WrapperNode [2023-11-23 20:36:42,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:42,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:42,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:42,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:43,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,074 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2023-11-23 20:36:43,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:43,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:43,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:43,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:43,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:43,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:43,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:43,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:43,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (1/1) ... [2023-11-23 20:36:43,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:43,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:43,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:43,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:43,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:36:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:36:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:36:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:43,371 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:43,374 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:48,276 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:48,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:48,356 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:48,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:48 BoogieIcfgContainer [2023-11-23 20:36:48,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:48,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:48,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:48,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:48,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:42" (1/3) ... [2023-11-23 20:36:48,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494cc666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:48, skipping insertion in model container [2023-11-23 20:36:48,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:42" (2/3) ... [2023-11-23 20:36:48,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494cc666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:48, skipping insertion in model container [2023-11-23 20:36:48,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:48" (3/3) ... [2023-11-23 20:36:48,367 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-40.i [2023-11-23 20:36:48,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:48,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:48,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:48,462 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;@4140efbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:48,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 45 states have internal predecessors, (67), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 20:36:48,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 20:36:48,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:48,492 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:48,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:48,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash 421686399, now seen corresponding path program 1 times [2023-11-23 20:36:48,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:48,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995918165] [2023-11-23 20:36:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:48,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:48,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:48,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:48,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:36:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:49,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:36:49,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-23 20:36:49,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:49,148 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:49,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995918165] [2023-11-23 20:36:49,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995918165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:49,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:49,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:49,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762041081] [2023-11-23 20:36:49,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:49,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:36:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:36:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:49,217 INFO L87 Difference]: Start difference. First operand has 65 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 45 states have internal predecessors, (67), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 20:36:49,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:49,558 INFO L93 Difference]: Finished difference Result 127 states and 222 transitions. [2023-11-23 20:36:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:36:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2023-11-23 20:36:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:49,577 INFO L225 Difference]: With dead ends: 127 [2023-11-23 20:36:49,578 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 20:36:49,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:49,585 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:49,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:36:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 20:36:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 20:36:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 43 states have internal predecessors, (61), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 20:36:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 97 transitions. [2023-11-23 20:36:49,633 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 97 transitions. Word has length 124 [2023-11-23 20:36:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:49,634 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 97 transitions. [2023-11-23 20:36:49,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 20:36:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 97 transitions. [2023-11-23 20:36:49,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 20:36:49,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:49,638 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:49,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:49,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:49,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:49,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:49,852 INFO L85 PathProgramCache]: Analyzing trace with hash 286507070, now seen corresponding path program 1 times [2023-11-23 20:36:49,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:49,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855442278] [2023-11-23 20:36:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:49,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:49,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:49,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:49,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:36:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:50,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:50,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 20:36:50,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:36:51,438 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:51,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855442278] [2023-11-23 20:36:51,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855442278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:51,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1223129132] [2023-11-23 20:36:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:51,439 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:51,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:51,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:51,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 20:36:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:52,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:36:52,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 20:36:53,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:53,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1223129132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:53,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:36:53,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 9 [2023-11-23 20:36:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101921579] [2023-11-23 20:36:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:53,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:53,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:53,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:36:53,037 INFO L87 Difference]: Start difference. First operand 63 states and 97 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:36:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:53,345 INFO L93 Difference]: Finished difference Result 125 states and 193 transitions. [2023-11-23 20:36:53,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:53,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 125 [2023-11-23 20:36:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:53,357 INFO L225 Difference]: With dead ends: 125 [2023-11-23 20:36:53,357 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 20:36:53,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:36:53,360 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:53,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 168 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:36:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 20:36:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 20:36:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-23 20:36:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 96 transitions. [2023-11-23 20:36:53,383 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 96 transitions. Word has length 125 [2023-11-23 20:36:53,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:53,387 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 96 transitions. [2023-11-23 20:36:53,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:36:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2023-11-23 20:36:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 20:36:53,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:53,391 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:53,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:53,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:53,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:53,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:53,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 987571648, now seen corresponding path program 1 times [2023-11-23 20:36:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:53,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674167741] [2023-11-23 20:36:53,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:53,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:53,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:53,807 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:53,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 20:36:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:54,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:54,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 20:36:54,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:36:55,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:55,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674167741] [2023-11-23 20:36:55,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674167741] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:55,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1859891649] [2023-11-23 20:36:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:55,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:55,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:36:55,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:36:55,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 20:36:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:57,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:57,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 20:36:57,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:36:57,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1859891649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:57,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198636732] [2023-11-23 20:36:57,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:57,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:57,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:57,786 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:57,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 20:36:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:58,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:58,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 321 proven. 27 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 20:36:58,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:36:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:36:58,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198636732] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:36:58,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 20:36:58,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 6, 6] total 8 [2023-11-23 20:36:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435372719] [2023-11-23 20:36:58,735 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 20:36:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:36:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:58,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:36:58,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:36:58,740 INFO L87 Difference]: Start difference. First operand 63 states and 96 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 20:37:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:00,317 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2023-11-23 20:37:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 20:37:00,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 125 [2023-11-23 20:37:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:00,321 INFO L225 Difference]: With dead ends: 199 [2023-11-23 20:37:00,322 INFO L226 Difference]: Without dead ends: 137 [2023-11-23 20:37:00,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 736 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-23 20:37:00,325 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 140 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:00,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 247 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 20:37:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-23 20:37:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2023-11-23 20:37:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 86 states have (on average 1.2674418604651163) internal successors, (109), 86 states have internal predecessors, (109), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-23 20:37:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 181 transitions. [2023-11-23 20:37:00,358 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 181 transitions. Word has length 125 [2023-11-23 20:37:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:00,359 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 181 transitions. [2023-11-23 20:37:00,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 20:37:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 181 transitions. [2023-11-23 20:37:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 20:37:00,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:00,363 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:00,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:00,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:00,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:00,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:00,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:00,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1449677434, now seen corresponding path program 1 times [2023-11-23 20:37:00,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:00,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94731242] [2023-11-23 20:37:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:00,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:00,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:00,979 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:00,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 20:37:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:01,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:37:01,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 20:37:01,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:37:01,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:01,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94731242] [2023-11-23 20:37:01,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94731242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:01,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:01,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:37:01,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874715355] [2023-11-23 20:37:01,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:01,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:01,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:37:01,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:01,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:01,838 INFO L87 Difference]: Start difference. First operand 127 states and 181 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:03,493 INFO L93 Difference]: Finished difference Result 394 states and 551 transitions. [2023-11-23 20:37:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:37:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 125 [2023-11-23 20:37:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:03,509 INFO L225 Difference]: With dead ends: 394 [2023-11-23 20:37:03,510 INFO L226 Difference]: Without dead ends: 268 [2023-11-23 20:37:03,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:37:03,512 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 160 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:03,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 239 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 20:37:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-23 20:37:03,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 176. [2023-11-23 20:37:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 114 states have internal predecessors, (138), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 20:37:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 246 transitions. [2023-11-23 20:37:03,561 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 246 transitions. Word has length 125 [2023-11-23 20:37:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:03,563 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 246 transitions. [2023-11-23 20:37:03,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 246 transitions. [2023-11-23 20:37:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 20:37:03,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:03,566 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:03,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:03,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:03,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:03,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1449737016, now seen corresponding path program 1 times [2023-11-23 20:37:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:03,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444062622] [2023-11-23 20:37:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:03,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:03,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:03,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:03,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-23 20:37:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:04,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:37:04,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 213 proven. 9 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2023-11-23 20:37:05,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:37:06,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:06,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444062622] [2023-11-23 20:37:06,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444062622] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:06,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1507458605] [2023-11-23 20:37:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:06,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:06,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:37:06,013 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:37:06,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-23 20:37:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:08,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:37:08,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 20:37:10,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:37:10,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1507458605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:10,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 20:37:10,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 7] total 12 [2023-11-23 20:37:10,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973455510] [2023-11-23 20:37:10,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:10,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:10,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:37:10,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:10,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:37:10,432 INFO L87 Difference]: Start difference. First operand 176 states and 246 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:12,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:12,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:12,874 INFO L93 Difference]: Finished difference Result 316 states and 440 transitions. [2023-11-23 20:37:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 125 [2023-11-23 20:37:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:12,889 INFO L225 Difference]: With dead ends: 316 [2023-11-23 20:37:12,889 INFO L226 Difference]: Without dead ends: 176 [2023-11-23 20:37:12,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:37:12,891 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:12,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 79 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 20:37:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-23 20:37:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-23 20:37:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 114 states have internal predecessors, (136), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 20:37:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 244 transitions. [2023-11-23 20:37:12,933 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 244 transitions. Word has length 125 [2023-11-23 20:37:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:12,934 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 244 transitions. [2023-11-23 20:37:12,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 244 transitions. [2023-11-23 20:37:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 20:37:12,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:12,936 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:12,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:13,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:13,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:13,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:13,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:13,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1577908576, now seen corresponding path program 1 times [2023-11-23 20:37:13,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:13,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714734526] [2023-11-23 20:37:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:13,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:13,351 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:13,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-23 20:37:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:13,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:37:13,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 213 proven. 9 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2023-11-23 20:37:14,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:15,142 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:37:15,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:15,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714734526] [2023-11-23 20:37:15,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714734526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:15,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [31911466] [2023-11-23 20:37:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:15,143 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:37:15,148 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:37:15,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-23 20:37:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:17,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:37:17,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 213 proven. 9 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2023-11-23 20:37:18,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:37:18,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [31911466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:18,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695466081] [2023-11-23 20:37:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:18,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:18,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:18,553 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:37:18,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 20:37:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:18,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:37:18,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-23 20:37:19,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:37:19,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695466081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:19,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-23 20:37:19,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7, 7, 7] total 12 [2023-11-23 20:37:19,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165984152] [2023-11-23 20:37:19,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:19,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:19,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:37:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:37:19,038 INFO L87 Difference]: Start difference. First operand 176 states and 244 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:20,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:20,053 INFO L93 Difference]: Finished difference Result 420 states and 571 transitions. [2023-11-23 20:37:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:20,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 126 [2023-11-23 20:37:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:20,057 INFO L225 Difference]: With dead ends: 420 [2023-11-23 20:37:20,058 INFO L226 Difference]: Without dead ends: 280 [2023-11-23 20:37:20,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 20:37:20,060 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 50 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:20,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 174 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 20:37:20,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-23 20:37:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2023-11-23 20:37:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 183 states have (on average 1.1912568306010929) internal successors, (218), 186 states have internal predecessors, (218), 78 states have call successors, (78), 14 states have call predecessors, (78), 14 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-23 20:37:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 374 transitions. [2023-11-23 20:37:20,111 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 374 transitions. Word has length 126 [2023-11-23 20:37:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:20,114 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 374 transitions. [2023-11-23 20:37:20,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-23 20:37:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 374 transitions. [2023-11-23 20:37:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 20:37:20,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:20,117 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:20,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-11-23 20:37:20,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:20,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 20:37:20,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:37:20,729 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:20,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:20,729 INFO L85 PathProgramCache]: Analyzing trace with hash -416236130, now seen corresponding path program 1 times [2023-11-23 20:37:20,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:37:20,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832494229] [2023-11-23 20:37:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:20,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:37:20,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:37:20,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:37:20,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-23 20:37:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:21,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:37:21,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:37:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 368 proven. 27 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-11-23 20:37:22,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:37:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-23 20:37:23,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:37:23,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832494229] [2023-11-23 20:37:23,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832494229] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:37:23,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [142022690] [2023-11-23 20:37:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:37:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 20:37:23,058 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:37:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52f57d8-9399-4972-bc4b-fbcfa58cf6a6/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-23 20:37:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:25,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 20:37:25,544 INFO L285 TraceCheckSpWp]: Computing forward predicates...